If you can be claimed as a dependent by another taxpayer, you must check the box on your own tax return that says you can be claimed, even if you don’t want to be claimed and even if the other person agrees not to claim you. Checking that box will disqualify you from any stimulus credit. If you can be claimed as a dependent by someone else, failing to check that box is tax fraud.
It seems very likely that your grandparents can claim you as a dependent. Review the other answers carefully to be sure of your situation before you break the law.
