Welcome to America! Sorry you had some problems with the visa, but glad you made it anyways! Good job practicing your English, there are some mistakes but I can understand everything, and I'm sure you will improve very quickly if you keep practicing! Good luck!

Also take a look at this if you want to get upvotes while practicing your English:
https://steemit.com/vocab-ability/@majes.tytyty/vocab-ability-185-ple-plu-full-a-more-powerful-vocabulary-earn-upvotes-with-vocab-practice-exercise