I've been in your shoes. Laws vary state to state. Does your medical cover mental health? If so, start there. Call a shrink, they may give you some time off. It sucks what your going through. I will tell you that it definitely gets better. You may feel as your world is out of control but once you slowly detach emotionally is when clarity comes through. I spent 14 days in my house alone when I got divorced, never even going outside. One day you just wake up, let out a deep breath and move on. I've never looked back. But do yourself a favor, learn to forgive at some point. Resentment to her will not make you feel better. It's when you can take responsibility for your own part of this. She maybe just as scared as you are right now. I hated my ex for years. Once I learned to forgive and care for her again is when you fully move past it and grow.
But listen to me carefully, never worry about being alone as a UPS driver. Being single for a while is sometimes what the DR ordered. But that's a story for another thread titled "More ass than a toilet seat!" Good luck man. You'll get through it.