u/chimoha123

I have been studying japanese for 3 years and a half now using the ajjat methode and plan to take the n2 in december this year. Most of the grammar points i know i accuired through immersion but to fill in the blanks i decided to study grammar using the sou matome grammar n2 text book, i already finished the text book, now i am just revising from scartch the grammar points to get them in my head, i was wondering if thoses grammar points really show up in the n2 because i never took a test before or did a mock test i wanted to wait until i fully revised the text book then do a mock test.i know that sou matome isn't popular in the community for not clear explanaion but my method i just see the grammar point and look it up and youtube and i use the drills in the book to help them stick,i also considered studying the shinkanzen but i still have listening and reading and vocab, so don't really have time to study another text book.
my question is anyone had sucess with the sou matome book and how do you study grammar for the test? and i want advice how can i study grammar the most optimal way.