Protect your hefty saving account, at all cost. Don't risk moving into an unstable situation that will put your "cash," your savings account, at risk. You are single, so you have more control of your situation than, if you were married. Since you are a live in caregiver for a parent, it appears that you do not have independence, but you do have more independence that you think.
"Burnout" is a problem for caregivers like yourself and myself (I am a caregiver for my 83 year old mother). There are times that I nearly reach burnout, but I have activities that bring Joy to me, and bring out the best in me, that keep me going.
You can stretch your small pension as long as you are a live in caregiver.
You may need some "home healthcare" assistance to free you up a bit so that you can have a life, travel (go on a cruise), or something.
It isn't easy, but since I am in your situation, and can honestly say, "I know how you feel," I know, for myself, Life could be much worse.
I am your friend, jaydene, I would not mislead you intentionally.
Take care. Merry Christmas. I wish you the best New Year,