Welcome to the forum, I'm sure here you can find the best tips to learn English. As dear moderators will definitely mention, the first step to improve your writing can be the correct spelling along with correct punctuation. Don't forget "I" not"i". make sure you have started the new sentence in capital letter.
Regarding speaking, watching film or series, talking to native speakers and also reading comprehension books can help you. Reading books can help your speaking as well as your writing.
Wish you luck.
Student or Learner