Dependency Question

So, since I turned 18, my parents have not claimed me on their taxes. While in college I have stayed at home so I have always selected YES on the box for potential to be claimed as a dependent. 
Does anyone know if there is anything I can do about the stimulus, as I understand it I am basically told to sit and spin even though I work full time.
Basics: 
ME: Single filer, full-time student, full-time employee age in 2019 22 (already filed).
Parents: joint, do not claim me as dependent.