[Day 06] Dear Diary.

The term "300 Project" stands for the amount of columns that will be written: 100 interviews, 100 book (reviews/ synopsis)?, and (?).

    b. You need "amount"  because I can't see a connection between "300 and column". But I can see a connection between "300 and amount"

    a. This sentence is still confusing though, because 100 + 100 is 200...

    b. an interview can be a "column", but a book cannot be a "column", so you need to be more specific.

    c. Also, you should write the medium, otherwise it is still ambiguous.  Is is a magazine column, a column on an internet blog, a newspaper column?

Today was my first day to interview somebody for 300 project.

    a. This sentence feels awkward because in English we would most likely call it "The 300 Project".  But if it is called simply "300 project", it is correct to say it like that.

What a History!

    a. You could say this in a pair of ways, but they are all kind of old fashioned: "We are making history" or "history is being made". But it would be much more natural to simply say, "I am so excited"

2.

I'm gonna write this my English diary on my blog (this site?).

    a. This sentence makes it seem like you blog on a different website, but you don't put the link of the other website, so it is strange. It has the nuance that the people reading already know about your blog.  

    b. Sharing especially has the nuance of putting it two places.

    c. "this" -->  you have already written "this" diary entry, so it is awkward to write this after "gonna"

It is quite embarrassing, but I want to build up my effort for learning the English.

    a.  It is better if you elucidate what exactly is embarrassing. For example: "It is quite embarrassing to show other people the mistakes I make,..." 

"build up my effort" --> This doesn't make sense.  I think the phrase you are looking for is an idiom: "gain traction" or "pick up steam". but I really want my quest to learn English to "gain some traction/ pick up steam".  You could extend the metaphor in this sentence actually and write:

    a. It is quite embarrassing to show other people the mistakes I make, but recently I have felt like I am spinning my wheels and writing in English everyday may help me start gaining traction.

    b. The image conveyed by the sentence is one of "learning english" as being a car, but it is stuck in the mud and "spinning its wheels".  If you "gain traction" you start moving again.  Does it makes sense?

Let me know if you have any questions ^^

[Day 06] Dear Diary.

[Day 06] Dear Diary.

Today is also the first time ill be doing an interview for the project.

What a history!

2.

I'm gonna share this english diary at my blog.
It is quite embarrassing, but I want to build up my effort for learning the English.