thank you very much for your help, マイケルsan!
gaghl641295-san, have you tried our JLPT preparation lessons?
If you want to focus on JLPT, using the list from the link マイケルsan provided, you can probably
focus on JLPT preparation lessons. Vocabulary covered in regular lessons might be usuful too, but
it's difficult to say which one covers what vocab.
As to grammar points and so on, you can check which lesson covers what on our curriculums