I am an art graduate in senior three. I want to repeat one year, but my English is too poor. I want to make up my English. How should I start?

What is the lowest control line in English? If you make up English, you should mainly recite more words and learn some grammar basics. I am also an art student, and my English is poor. I made it up in three months. Reading and gestalt are very important. You can recite some templates and write simple sentences in your composition, instead of writing a lot of wrong clauses. .....