Hi Anna
Sounds like now that your father is out of your place you are taking stock and finding a big imbalance in the ledger. I just want to give you permission to set limits on the time, energy and money that you spend on your dad. There are likely to be more caregiving demands in the future and you need to pace yourself or get burnt out. The long term care insurance is probably a good investment - but otherwise limits have to be set.
I would tell any family member/caregiver that their first responsibility is to themselves and their own families. That is true whether you are single or married with kids. You NEED to have time and energy to put into your own relationships and activities, and by the way, that is just as important as anyone's "auspicious" whatever. If you already made the switch for long weekend, probably too late to change, but just think of the money you'll save (hopefully some holiday premium pay too). In the future you must make your own plans a priority and let others work around it.
I appreciate your honesty and it bodes well that you are insightful and aware of your own needs. Now keep them in mind as you rebuild your financial and emotional stockpile.
Big hugs!