This is a language community - we can help you with questions you have, but we cannot teach you English. There are some courses created by members on here which you can find
here. Also look through the other threads or even start your own thread with questions you have.
Are you using anything to learn right now? Maybe a school course or a book? If so, which one? And what is your native language? You could try posting questions in the forum of your native language.