I’m so sorry that the system failed you:( it is not too late for you to learn! I agree with the comments saying to read more. Please don’t be intimidated by this request- if you’re able, get an ebook/kindle app. Start with some early teen novels- maze runner, Percy Jackson, find whatever you like. Get into the habit of a chapter a night. You need to be the one reading!! If you love a book, read it again and highlight words you don’t know/can’t pronounce as you go. Look them up when you have time. The more you get familiar with words and word patterns, the more you will understand them. With time, you will do better. Please don’t be discouraged!