Day 4: Why I am not happy?

I studied English hard this week and had a long day/week.
I don't was not  happy with during that. Why?
The reason why is, "Learning a foreign language is just a tools." I forgot it./I failed to recognize it.  that things.

I went to a happy hour event at the school/institute where I'm joining/(going to go) to next Monday./ ( where I will be joining from next Monday)
I met future classmates, one of them is from new York.
He speaks (His speaking is) very fast, but he and I are of the same age and take a common class,
so I could talk with him about design.
When I went to an English language school, I couldn't speak not (double negation is not allowed in English) at all. I even realized that I don't/(couldn't) speak well even Japanese well.
Having a common talking point is important/essential in initiating to the a conversation./(Having a commonality is important/essential in a conversation.)
I know/knew that, but I forgot that  it completely.
At the night, I was very happy. I've not don't forgotten the experience.

頑張ってください。

Yes, Please go the the tourist information center, and ask one the staff to call. Staff= employees working there in information center in this case. staff is also a "wooden rod"used usually by old people while walking, for support. Note: your sentence is grammatically correct. I just modified it to make the context much clearer.

my plan

I will go to ChanZhou zoo in two days later with my son and my mother .It will take me four hours by car ,but my driving level is not that good ,so I worry about that. my son is two years old ,i hope he enjoys this travel.

Note: Two days later is also correct but it is not used in this case. It can be used in cases like,

           Eg. You are on a trip and your plan is as follows. We will arrive in Tokyo on Monday and Two days later we will be in Kyoto. 

Taking trains

I often take trains since I left my parents’ home to go to university living in another city. I take took [habitual actions always described in present tense] a train home in every winter and summer vocations vacations and also some other holidays. If the trip takes less than 5 hours, I choose taking trains instead of airplanes or shuttle buses because it’s cheaper and fast enough. But there are also some annoying problems about taking trains.

Before 2011, we can could only buy train tickets at the train stations or  through railway ticket agencies. It was always very crowded at in the railway stations. You had have to spend a lot of time standing to stand in a queue for the ticket. wait.  When its your turn finally get , turns out the ticket of the train you wanted to board take is sold out. But since 2011, we can buy tickets on the internet, which is very convenientce. If you buy tickets online and you[wanted to cancel it] haven’t picked up your ticket, you can also get a refund or change your ticket online.

Even though you've got get your ticket, if you want to get into the railway station, you still need to bringing your ID card, with you, and also all your luggage need to pass the security check before boarding the train. Finally you arrive at the waiting room, you can could find some place to sit have a seat or just stand in the queue waiting to for boarding. In the past, people only got to check their tickets by manual ways. Now as many automatic checking machines have been are set up,so that tickets could be checked automatically, which would save a lot of time and workload.

We have many different types trains in China like G-series high-speed train, D-series high-speed train also called CRH (stands for China Railway High-speed) train and Z-series non-stop train etc. I usually take G-series high-speed train, which is a little bit more expensive but much faster than others.

Usually no. You can add adverb after verb. eg. Fight bravely. And not Fight brave. Here right can be both adjective/adverb and even noun/verb depending on context. In your first sentence, right acts as adverb while on the second its used as an adjective. In case you use it as a verb, Eg. Right the wrong. as a noun, Eg. You have right to free speech.

About this weekend.

It was a 3-days-weekend, so my family went to Kawaguchiko in Yamanashi prefecture.

On the first day of the weekend, we went to a park. We enjoyed watching beautiful leaves.
When we were about to leave the park, my husband  realized [found out] that he had lost his key. Fortunately, someone found and returned it.

On the second day, we went to the Fuji laser dome museum.
Actually, my husband and I have had visited it[this place] there earlier, before we had kids. a child. Now, we have 4 children/kids. Time flies!!

There was is a big dome, and which used to be was placed on top of the Mt. Fuji for 35 years ago.
We watched the a short documentary movie about how difficult and challenging it was to built such a big/huge ladder on Mt. Fuji.
It was really impressiveng, and I was almost cried.

After watching the movie/documentary, we had lunch at [a] draft beer restaurant. I tried 3 different flavors tastes. I liked the pills.

I was really refreshed/[it was really refreshing]. I want to visit there again.

Note: while describing a particular landmark, eg. The dig dome in your write-up. 

           Always use present tense to describe it even though you are describing the past. 

           If you say, "there was a big dome." It can mean, there was a dome but now its no more. So in order to avoid this, for describing key landmarks we use present tense. 

"There is a big dome, which was......"

"There is this Big dome, which was......"

"

This week

This Monday and Tuesday, I had 2 days off in a row.[not necessary, since you mentioned monday and tuesday at the beggining]

Or Just say, This week I got two consecutive day offs, Ie. on Monday and Tuesday.

On Monday, I went to a visa center to submit some papers relating to that relates working holiday. It took about 45 minutes. I hope it will not would be  rejected/ I hope it will be accepted.[more positive tone]
After that, I met my friend and had took lunch. I saw her for the first time in 3 years, however It didn't feel like a long time the distance. We constantly chat whole the time for 6 for hours well before this meeting. We couldn't stop talking. My cheeks/jaw hurts from laughing too much.

on Tuesday, I went to eat Thai food with my 7 other coworkers. Because of the number of members, we were was able to order varieties/[various types]/[many types] of food. All food items were very tasty, and were not too/that spicy too much, so it was easy for us to eat for us as Japanese.

I had/spent a good time with my friends this week.

三つの言葉の違いは。。？

こんにちはわみなさん！～

「敬意」と「尊敬」と「尊重」はどんな違いがありますか。
ありがとう！