ditto to time off!
okay, so vacation in terms of days or a week might not seem possible but you have to work some actual down time in and a few days at a stretch would be best.
in the meantime, some ideas ... one might work for you
establish some kind of 'down day' as though you were working a mon - fri 9 to 5 job. and had saturday or sunday to yourself. hand over all but the most critical of tasks to your help and take that time FOR YOURSELF
after breakfast, after cleanup, after checkouts, after what i HAD to do, i started trusting tasks to help and at 1 pm i went to my room, set the alarm for 2:45, turned on a fan, put on a sleep mask, and rested until the alarm went off. got ready for 3 pm checkins. note was on the door that checkins were 3 to 7. guests would often come early, but i was not available yet.
when there is a lull in the activity, stop doing, lock the door and walk down the street. go someplace else. anyplace else OUTSIDE of the place.
yoga ... simple stretches. just stop what you are doing. stop all inn work and do some body work. breathe and stretch and take that time for you. phone goes to voicemail.
a shower or a soak in the tub. again ... when there is a lull or when the housekeeper(s) is running around. or schedule it. get in the tub and just relax.
instead of multi-tasking all the time while you are waiting for guests to check in, sit on a porch swing, in a rocking chair, anywhere and just sit. read. observe. listen. be still. calm your mind. take 20 minutes or a half hour just for you to be still.
if you don't take care of you, who will?