Are you going to go down quietly,
like a little mouse,
or,
are you going out with a fight,
like a freaking tiger.?
Just curious.?
start looking for a job now. Not tomorrow, not next week. You are done. Hr is not your friend. Document everything. If your manager has done anything stupid, illegal, or harrassed you -document. All correspondence must be documented. Copy all of your important documents. Buy a flash drive and copy everything. Do not roll over, the company does not care about you. For your own sake and dignity, stand up for yourself.
I guess it is just me.
Don't blame yourself cupcake. You are selling a has been. Be happy you made it this far. Good luck to you.