I am learning English. Please I want correct if my writing. is well

Dear Mrs. Sanders,


Thank you for your letter, I'm very excited about this new experience,
I know that I will enjoy it be well and sharing this time with you will be nice.


I am going to go to San Francisco on August 05 . Thank you for the information about the train.
I did not really know how to get from the airport to the city. After arriving I'll take the train into the city. Yes, I have a cell phone, my number is +51986931196. I'll call you when I am on the train, to tell you them I'm on the way to the city.

Please could you correct it if it is wrong.
This is an informal letter

I am 20 years old, I am a friendly person who is friendly who likes to talk a lot, and also help with chores. There is Only one thing, I'm allergic to peanuts, they causes me to swelling. I would like to have a room just for me. I plan to stay two months after the end of my courses, to practice my English.

I hope to hear from you soon. to know
Best wishes

I am learning english I want help me if my write is well