30+ years here and about year 20 had very similar thoughts. I do wonder how much of what you (probably many) are feeling is a result of the changing environment of public education. Expected to do more, more, more with less. With that said - I do believe Texas is a great state to teach band and we have more support here than most places (not all places).

More importantly, similar to other posts - the most helpful thing to me over 13 years ago now - was a mind shift - and the shift was teaching was part of my life but not my whole life. It is very easy for us to make our entire existence about being a band director. Suggestion - next week or longer break - take some time to take a deep dive into yourself - about your family, (faith), lifestyle, hobbies, etc Reevaluate sectional and rehearsal schedules and make sure you are not taking work home with you - or not working at home most days - in other words - work while at work - be home while at home. I know for me this was a very hard change - and honestly I still struggle with it, but it did make a positive impact on my life.

Another shift that a mentor suggested and has worked for me - is the shift from I have to go teach band today to I GET to go teach band today. It really is a mind shift - and with it make the decision to not complain / be around folks that complain all the time. I just started walking out of a room when other teachers were complaining and made sure I was happy in what I could control. Since that time, I have regained the joy of teaching music to students.

Just one pretty old guys opinion and suggestions... I wish you the very best.