Was told by my manager, " don't ask about it you could be fired"
Employment / Labor Attorney
You probably are entitled to overtime, assuming that the federal Fair Labor Standards Act (FLSA) covers either you or your employer. If you have a valid overtime claim, then you could recover the unpaid overtime, plus an equal amount as liquidated damages. You could also recover your attorneys' fees and litigation costs. I would encourage you to consult with an employment attorney.
My answers to questions posted on AVVO are intended to provide general information only, and are not intended to be legal advice. Employment law issues typically require a careful case-by-case analysis. Consequently, if you feel that you need legal advice, I would encourage you to consult in person with an employment attorney in your area.