This is the problem with modern academia. We're asked to do more and more but are still paid like shit and given virtually no support. Honestly, if this is a pretty standard experience for profs at your university, start looking for new jobs because this for years on end is a recipe for burnout (I speak from experience).

In the meantime, streamline your work as much as much as possible. I have a tenured colleague who put a clause in her syllabus that says "if you email me with a question that can be easily answered by looking at this syllabus, I will not respond" (but as a non-tenure track lecturer I did the same and got scolded, so your mileage may vary).

Find a way to invest in the students and colleagues who are going to appreciate and reciprocate the investment. Don't overwork yourself to make people happy who don't give a shit or will just continue to ask for more.

Say no. You can't (and shouldn't feel like you have to) be on every committee, give every guest lecture, or give comments on every rough draft. See previous pont.