Hi bgk7392,
To score at a high level on the GMAT, you have to have a variety of skills (more than just content knowledge) and the only way to properly assess whether you have those skills or not is to take FULL-LENGTH CATs under realistic conditions AND at regular intervals. From your posts, it's not clear whether you've taken any practice CATs recently or not - so if you have not, then you should plan to take one soon.
In addition, it would really help if you could provide a bit more information on your studies and plans:
1) Did you end up doing any studying for the GMAT back in 2018? If you did, then for how long and what materials did you use?
2) What is your overall goal score?
3) When are you planning to take the GMAT?
4) When are you planning to apply to Business School?
5) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich