I asked to go down in hours at my bookstore/publisher job

I was grateful for the job, and have learned a lot from the owner but she is really hard to work for. She is mean, she snaps, she shoots the messenger (me) and everything is always my fault.

With my new manager job, I don't really have the time (it's more about brain space) to do as many tasks at that job and also remain competent enough to continue being a good employee at either. Not to mention the other jobs I do.

When I asked her if I could have less hours, she said no.

So I guess I am just meant to quit, then?

I want to give my two weeks but I am intimidated by her, and I feel guilty that I take care of all of her tech and computer stuff and she doesn't know how, so if I leave, it'll be really stressful for her.

And I'm afraid she'll badmouth me to other people and we live in a small city.

I need to do what's best for me but I am being a wimp.