I always have some thoughts in my mind but seldom to do them and make them realizedo I act them out.

Just like settlling down the diary this timewriting in my diary right now.

I even don't even know exactly know how to spell 'diary', and I first spelled it into 'dairy'.

But through this way I've learned a new word, it's n. Not bad, right?

To make my helpers know what contents this diary is mainly about, I 've learned another word: 'balderdash'.

Although I don't know whether it is suitable for my title.

During this time, I seem to be stuck in a situation thatin which I can not persuade meyself to accept myself.

I always tell me thatyself to focusing on right now and your own life.

To fight with something bad ins mankind's nature, and to overcome it, that may be what wemakes us different from animals.

I always have some thoughts in my mind but seldom to do them and make them realizedo I do something about them.

I think I understand what you wanted to say, that you think about a lot of things but you rarely take the time to carry out whatever plans you make. "to do them and make them realize" isn't correct, so I replaced it with "to do something about them", which has the meaning I think you wanted to imply.

https://www.merriam-webster.com/dictionary/do%20something%20about
https://www.ldoceonline.com/dictionary/do-something-about-something

Just like settllwriting down theis diary entry this time.

"a diary" is a whole entire diary, so hundreds and hundreds of pages of writing.

"a diary entry" is a single record/page/selection of writing. Every time you make a post on LangCorrect, that is a single diary entry, not a whole diary.

Finally I decided to do it.

Need to use the past tense here, since you didn't decide while you were writing this.

I even don'tdidn't even exactly know how to spell 'diary', and I first spelled it into as 'dairy'.

Again, you are talking about something that happened in the past, so I changed this sentence to past tense.

But through this way I've learned a new word, i. It's not bad, right?

I think it's better to split this up into two sentences

To make my helphelp other users know what contents this diary entry is mainly about, I 've learned another word, 'balderdash'.

"to make" means like to force someone to do something. You are just trying to help us understand what the diary entry is about, you aren't forcing us to know, so that's why I changed it to "help"

a "helper" is like an assistant or someone who works for you. We don't work for you, so that's why I changed it to "other users". (as in, other people who use this website)

During this time, I seem to be stuck in a situation that I can not persuade meyself to accept myself.

I always tell me thatyself to focusing on right now and yourthe present and on my own life.

We don't say "I tell me", you have to use "myself" when you talk about speaking with yourself.

examples

1) I told myself that I would never drink again.
2) She tells herself to focus on studying for the exam.
3) It's important that we don't tell ourselves negative things all of the time.

But sometimes I just can not control myself, and I will recordnotice something I'm jealous of.

"to notice" means to become aware of something, and i think that sounds more natural than "record"

However, some things seem to be magicstubborn and I think I can not get rid of them.

"magic" just sounded strange to me here, so i replaced it with "stubborn"

https://www.merriam-webster.com/dictionary/stubborn

To fight with something bad in mankind's natureyour own bad qualities and to overcome ithem, that may be what wemakes us different from animals.

The first half of the sentence sounded unnatural, so that's why I changed it around so much.

In the second half, you need to be careful using "maybe" and "may be", because they have slightly different meanings. I think you meant to use "may be", so that's why I changed it. The links below explain the difference.

https://thewritepractice.com/may-be/
https://writingexplained.org/maybe-vs-may-be-difference