In the final year you should only focus on final year subjects as they have max weightage in NEET PG. Go through imp topics of these subjects which are high yield for NEET PG during final year (you can find them on internet.). For NEET PG preparation both Marrow and PrepLadder are good. Marrow has best qbank but lengthy video lectures while prepladder has concise video lectures but inferior qbank. But whatever you follow just follow it only. Don’t use multiple source for preparation. It will lead to hoax and you will end up with nothing.
P.S.: Marrow 4.0 is launching in Jan & they claim it as best source for NEET PG.