I Need Help On How To Leave My Junkie Husband

My husband is an opiate addict. We have a 2 year old son. I don't make enough to support my son and I independent of my husband. I've been job searching nearly a year now for something better, and my job hunt has been unsuccessful.

I'm very scared though. My husband is verbally abusive when he can't get his fix. He has not physically hurt my son or I yet. We've lost a car, my credit has gone to crap, we struggle to buy the bare necessities such as diapers or milk. I don't have family to help. My husband has already alienated my family, amd they've turned their back on me.

I live in Texas. I don't know how to leave. I'm absolutely terrified to strike out on my own. I can't take care of myself. I feel trapped.