Tips for working?

I'm interviewing for a part time job tomorrow, and because of my availability I think I'll get it unless I just mess up horribly. I was going to wait and see if I could get to a better place with my DP/DR before jumping into something like this but I haven't, and time has run out. I need an income of some kind, no matter how small

The first job I had a couple of years ago, despite being only 12 hours a week, sent me into the worst bout of DP/DR I've ever had. It lasted 8 month and continued even after I quit. It was a nightmare. It consumed so much of my energy that I didn't have a life or personality outside of working any longer. I just thought about my next shift and how I'd get through it

I don't want the same thing to happen again, especially because my shifts will probably be longer and I might have more hours to work each week. This is a much needed step toward becoming more independent as I figure out my career but I'm afraid it's going to mess me up big time.