Sole caregiver is hard. Really hard. I don't have the same situation -- not a parent (not gonna happen), but my BF after spinal surgery. That didn't heal right, so supposed to go in for second one sometime soon. And a spell of every 8 hours for 6 weeks antibiotic infusions. Earlier on he was far more dependent (and will be again soon). We're at the year mark so far. No friends. No local relatives.

Will the caretaker be taking her to appointments or do you need off of work to help her (or can she manage herself on that)? I hope your workplace is flexible with that.

The only way to make time for yourself is to insist on it. And like WC said, be very firm about it. Think about what you'd like to do for yourself from the bigger things to the little and make a list. Maybe carve out a chunk of time on one or both of your days off to do them. Also, trying to be mindful can help --like getting tidbits of refreshment in the midst of ordinary things.