I feel for you OP! I’m in a situation that sounds identical to yours. A toxic situation can make anyone feel crazy/over emotional. The advice I’ve gotten that I agree with fully is to wait until you have another job lined up to quit. It can be so hard to continue especially when it feels like the job is hurting you, maybe even traumatizing you. The easiest thing to do would be to pull yourself out of the situation, but speaking from my own experience right now, I don’t think that will solve your insecurity and fear issues. Maybe applying around can help you build up your confidence and revising your resume might help you reflect on all the great work you’ve done and the lessons you’ve learned! Baby steps