Is this letter correct? Please correct me... I'm not speaking English very well, so help me please!!!?

Question

Dear Miss xxxxx,

I haven’t seen you for a very long time. How are you? I hope you are all right.

I write this letter to you because I want to thank you for all your efforts. If it hadn’t been for you, I

wouldn’t have achieved considerable success as a writer. Without your help and support I wouldn’t

become self-confident so that I couldn’t be able to become that person who I am now.

I want to say that you was a very significant person in my life and the only teacher who didn’t go out

of her way to be nice to me because I am black. By the way, I loved your lessons because the

atmosphere was peaceful like any other.

As I wrote, I am a writer now. So I want to tell you that I wrote about you in one of my books.

It’s name is ‘I Know Why the Caged Bird Sings’. You crop in my book up because you are the only

teacher I remembered and a very intelligent and self-confident women. To be quite honest, I must

admit that you were my idol.

All in all, I want to thank you very much for your great teacher skills, your fairness to people and your

agility to make teenagers more self-confident.

I hope that we will meet soon. I wish you all the best.

I’m looking forward to hear from you soon.

Yours sincerely,

.....

Answer 1

Dear Miss xxxxx,

It has been a long time since i've seen you. How are you? I hope you are doing well.

I am writing this letter to you to thank you for all your efforts. If it hadn’t been for you, I

wouldn’t have achieved considerable amount of success as a writer. Your help and support has strengthened my self confidence and be who i am now. I just wanted to say that you have been a significant in my life and the only teacher whom treated me nice even despite i am black. By the way, I always loved your lessons because the

atmosphere was peaceful like any other.

As i am writing, I have become a writer now. I would like to share that I have written about you in one of my books.

The title is ‘I Know Why the Caged Bird Sings’. I wrote about you in my book as a remembrance that you are the only

teacher that is very intelligent with high self-esteem. To be quite honest, I must

admit that you are my idol.

All in all, I would like to thank you for your great teaching skills, your fairness to people and your

eagerness that gives confidence to the teenager.

I hope that we will meet soon. I wish you all the best.

I’m looking forward to hear from you soon.

Yours sincerely,

Answer 2

- I haven't seen you in a long time.

- I want to say that you WERE a very significant...

- I'm black

- unlike any other.

- As I wrote, I am a writer now. <---- This makes no sense...

- The name of the book is...

Other than these problems, everything else is fine.

Answer 3

Hey, your english is GREAT!

I (am writing) this letter to you because I want to thank

Without your help and support I would not (have)

become (so) confident (and would not have been) able to become (the)person  I am now.

I want to say that you (were) a very significant person in my life and  the

atmosphere was (more) peaceful (than my other lessons).

As I wrote, I am a writer now. So I want to tell you that I wrote about you in one of my books.

It’s name is ‘I Know Why the Caged Bird Sings’. You crop (up) in my book  because you are

teacher I remembered and (because you  are) a very intelligent and self-confident women.

your great (teaching) skills, your fairness to people and your

I’m looking forward to (hearing) from you soon.

Yours sincerely,

.....