The Post

I watched "The Post" today.

Although my friend who had watched before said "It was so good", I tried not to go into it with any expectation and had kept  to keep calm. ("I tried not to... and to...", the verbs (to go and to keep) must conjugate the same way if both are related to "I tried to". But you could also say "I tried to... and kept calm" if you didn't try to keep calm but you tried something, and you kept calm)

As (why "as" ?) The result of that was not bad, I mean, the character that Maryl Streep acted was a little different from what I thought.
Anyway, Maryl Streep's acting was too good. I understood that's why she has been nominated for an Oscar over 20 times.
Also, there were not any PC, internet, mobile phones, tablets in the movie at all (maybe "at all in the movie").
Of course, it is natural. This is, as the story takes place in 1971, but I was a little surprised to me that I had felt  feel that it was fresh on the contrary.

Although I only read the newspapers when I get back to my family house, I like the smell of the newspapers.  ( It looks like you refer to newspapers in general so you can't use "the". If you were refering to a particular newspaper then you should specify which one, otherwise it's weird)
I'll read newspapers thoroughly when I get back to my family home.

A new Hand Made Tool

I have to wind up (using only "to wind" seems more common. "to wind up" has several meanings, which can confuse the reader. Well I'm not a native speaker so I feel that way) some reeled (If I understood correctly the silk thread is not already reeled because you precisely want to reel/wrap/wind it unto the bobbin ! ) 14-silk-floss  (I don't know anything about silk but if there is 14 silk thread bundles then it's better to write "14 silk-floss") onto some small bobbins.
The flosses are some dyed fibers which had ("have" seems appropriate here) been reeled from cocoons and had ("have") been refined.

I made a handlebar using a wire taken from a clothes hanger yesterday.
It may help me to spin rapidly ("rapidly spin") a bobbin and saves time. (If  it "saves time", then "it helps" you. If it "may help" you, then it "(may) save time")

If I did not write this diary, I might have already finished the work. > <

Voices in French

It rains gently.
I am doing some embroidery on a piece of white linen in  (maybe "with" ?) white threads while listening to the sound of raindrops.
Form ("from") time to time, talking voices reach my ears from outside. ("from outside reach my ears" seems better, as in the French version)
The people having a conversation seem to be French women, but I can not ("cannot" without space is common) tell what they are talking about.("talking about", "about" is necessary when using "talking" with "what")

Voix en français

Il pleut doucement.
Je fais de la broderie sur un morceau de toile blanche en utilisant des fils blancs tout en écoutant le bruit des gouttes de pluie.
De temps en temps, des voix parlantes ("voix parlantes" forme une sorte de répétition, mieux vaut écrire :  "des paroles" / "des voix" / "des bribes de conversation") atteignent mes oreilles de l'extérieur (correct mais il serait plus naturel de d'écrire : "venues de l'extérieur atteignent mes oreilles").
Les gens qui ont une conversation (correct mais peu naturel, le verbe avoir est inutile ici : mieux vaut simplement écrire "qui conversent") semblent être français mais je ne sais pas de quoi ils parlent.

Ce texte est très bien écrit !

Practice for English exam.

Topic
Today, more and more young people are starting their own companies. Do you think this is a ("a" is necessary here) good idea?

I think this is a ("a" is necessary here) good idea.
The first reason is that it is a ("a" is necessary here) good experience for young people. They can get lots of ("many" is mostly about something you can count, here we can use "lots of") knowledge ("knowledge" is singular only, there is no plural) about economy earlier (more younger?) than people who start businesses/a business ("start business" is a bit strange in this context, "a business" or businesses seems more appropriate)   after ("since" imply a duration after a past event, wich is not the case here) they became adults.
The second reason is that young people can work freely (in their own business). In Japanese companies, the (as we refer to something/someone precisely, "the" is necessary) boss is usually an ( "an" is necessary) elderly person. Young workers can work smoothly with (by using? -> "with" is good, by using is also goo although the meaning is a bit different) new technology, but elderly bosses (use plural "bosses" or "the eldery bosses") often can't understand it and it takes much time to explain it.
Therefore, I think it is a ("a" is necessary) good idea for young people to start their own companies.

Can someone correct my sentences (many phrases so plural -> sentences) ?
I couldn't express well what l want to say :(. --> I wouldn't say that, everything was quite clear and anyone will understand it :) . There are just a few small grammar mistakes like "A good something", "AN eldery person", "THE company's boss".

Darkest Hour

I watched "Darkest Hour" Friday.

This time it was not the story, but Gary Oldman's acting that I wanted to watch.
Although visuals had already been released on a poster and the trailer, it was amazing, Gary Oldman had completely become Winston Churchill.
Ultimately, I even thought It might not be Gary Oldman(Lol).
But there were some charming parts in his acting and I could find Gary Oldman's personality (you can add "through them" if you want).

I went to the theatre after work, so I fell asleep a few times.Maybe I was a little tired, Hahaha.
Therefore people who will watch this movie had better know the historical background beforehand.
If you do that, you'll be able to enjoy it more and at least you will not fall asleep.

His acting has improved with age, like Liam Neeson's acting (this last "acting" can be omitted)., but I want to see him acting the stunning villain again.
Don't you think so?

Steven Spielberg

He is visiting Japan now. I learned that he is 71 years old yesterday. 71 years old?! Wow!

Steven Spielberg, Clint Eastwood, Martin Scorsese and other elderly directors are so powerful (maybe amazing instead of powerful would be better, what did you want to say ?)!

Look at this picture, his cheeks are shinier than mine(Lol)

I think that they don’t care about age because they are doing their best at what they love (or "doing what they love best" as Zena pointed but the meaning is a bit different so you have to see what you want to convey).

I will look forward to seeing (seeing can be omitted) the movies they directed. -> The whole sentence seems a bit off, you could say "I look forward to their next movie" for a more natural feeling. That is assuming you were talking about their future movies, but you could also mean "I want to see every movie they directed as soon as I get home and find the time", in which case you would say something different, maybe "I can't wait to see every single movie they directed.".