Many people ask us, how to "learn" English. Here is a very good article on how to do just that.
In the article the first point they mention is "reviewing" as more important than learning.
Tip #1: Never learn something new before you review what you know already.
Have a look at the other tips to help you improve your English skills.
https://www.lingualift.com/blog/8-habits-of-highly-effective-language-learners/