Study tips for Hindi?

I'm in 7th. 7 chapters in literature, 3 in mahabharat and the whole book of grammar. I've studied 3 chapters of literature, the whole book is clear. Do I go with the jo hoga dekha jayega or what do I do 😭🙏 (my exam is tmr) I'm asking this specifically here because these must be some older people who have experience and ykwim like uhhh HELP