Sorry to heard about your job situation. No matter what happens, please do not resign. Hang in there as long as you can.
Your story remind me of my past situation at work. I worked for a boss, but as long as I do my daily assigment, he will not bother me. I remember we have a mid year review and he told me that " I am a reliale worker and he happy with my work performance.
After that, another supervisor ( in same group) took over the whole group and my boss is no longer in supervisor possition, just become a regular worker like me. The new boss suddently talked to new manager and we ( me, my previous boss and another co- worker) get a written warning . In the new boss eye's, we did not performed well on our duty and we were given 90 days to improve out performance or more consequences will follow.
I cried serveral days because I am very upset. This is the first written warning I ever received in my 30 years working carrer. After thinking and discussing with DH. I decided to fight the situation with whatever I have. At that time , all I can think is to keep my job. I stay longer at work for many hours and come in to work every weekend to make sure I never miss work the deadline for whatever job the new boss assigned to me. I also make sure the new boss knows I stay at work late and come to work in the weekend.
After 90 days, my efforts pay off. I am out of probation situation while my previous boss and the other co-worker get terminate. Since then, under this new boss. I still stay make sure all the work assigned to me get done before the deadline. It take a couples years until finally the new boss accept me as one of his people and no longer giving me a hard time.
I can never know the whole situation of why it happens and why the new boss target us ( me, my previous boss and my co -worker). I remember all around me , people I know, got lay off from work . Every week, I heard someone I know lost his or her job. It was very terrible and very depression situation.
I share my story with you with the hope that you will fight hard to keep your job for a few more years until you qualify for medicare.
My DH is about your age and not long ago, his upper management ask him when plan to retire. Iam not sure it is just a normal conversation or it is a bad sign . I just hope DH can stay at his current jon 3 more years until he can get his medicare. But who knows, nowaday company loves to push away old worker to replace with new younger worker.