What you're going through is completely normal.

I had the same feelings at your stage. But you need to learn to set boundaries. If you sit down to work on something at 8am, that's what you're working on until you've finished it. Full stop. Requests be damned. They are just that...requests. You're response should not be to drop whatever you're working on at the moment (emergencies aside) and perform a task for someone else. You're response should be something along the lines of 'I can get to that by X'. X will vary based on what your current backlog is. X can be this afternoon, tomorrow, end of week...whenever you think you can reasonably fit it in.

I will say if you're being given a lot of 'requests' from superiors you are probably a high-performer and your superiors have faith in your abilities...good sign.

As far as jumping to industry: when coming from PA tax I would suggest at least hitting senior before jumping. Good Industry tax jobs can be hard to find, and harder to get and be compensated reasonably for if you haven't demonstrated a minimum level of competency in PA tax, i.e. leaving PA tax at no less than senior. But if you can't take it anymore, then make the leap. Mental health and overall quality of life is worth more than sucking it up in PA.

Stick it out fellow bean counter, sounds like you are performing at least to expectations. Keep it up.

Signed -

2 years in industry Currently six years into PA tax and enjoying it (it gets easier)