Hi J2S2019,
Since your 650 is from a GMAT that you took back in November, 2019, if you have not much/any studying since that time, then it's likely that your GMAT skills have 'faded' a bit. Assuming that you're now restarting your studies at this point, the logical next step would be for you to take a NEW, FULL-LENGTH CAT/mock (re: one that you have NOT taken before). You should make sure to take it in a realistic fashion that matches-up with what you will face when you take the Official GMAT (take the FULL CAT - with the Essay and IR sections, at the same time of day as when you'll take the Official GMAT, if you will be at a Test Facility, then wear a face mask, etc.). Once you have that Score, you should post back here (or you can feel free to PM me directly) and we can discuss the results and how you might best proceed with your studies.
1) Have you done any studying recently?
2) What GMAT materials do you currently have access to?
3) When are you planning to apply to School - and are you interested in the same Schools that you mentioned back in 2019 (Harvard, Said, Wharton, etc.)?
GMAT assassins aren't born, they're made,
Rich
Contact Rich at: Rich.C@empowergmat.com