It sounds like you have some big changes coming up and change is often scary and sometimes unwanted.
It sounds like you're still considering moving to care give to your parents who both have dementia and who will have to move to an assisted living place at some point. I hope you give a lot of thought to making such a move because it would be an enormous commitment. You may be able to help with the transition without taking on the role or primary caregiver. That way you could help out, but could still retain your own life and maybe a new job.