I feel so drained but it's my turn for some more days to watch my parents. How do I get motivated to go tomorrow?

Before I retired I had a job that required presentations in front of executive groups which could make me anxious. I would judge the time required and then remind myself 'this will be over in 2 hours' or 3 hours or whatever time I set. It put things in perspective and make the time seem manageable. I would tell myself 'when this is over I can relax, go back to the hotel, have a great,' anything to look forward too.

Can they not hire someone to care for them. If they have Ss that can pay for it.