Hi,

Firstly, I suggest you buy a nice English workbook, like Oxford Practice Grammar where you can learn grammar from the very beginning. Also, you can buy different books from Oxford as well. Secondly, start reading some fiction books. It will give a better understanding of sentence structure and will enrich your vocabulary. You can read some magazines in the beginning. Also, watch movies in English. You will learn how to pronounce different words. Use different resources like Grammarly or https://robotdon.com/grammar-check/. Find some online courses. And maybe the most important - talk to people as much as possible. Only then you will be able to learn and master English. Hope this info will help. Cheers!