I need a break...

I take care of my 2 year old by myself. I literally have no friends no family I can't get day care assistance and I can't afford day care it's more then my rent every month! It's just ridiculous and I feel like I'm gonna have a fucking break down!! I need a fucking break I have no one I'm going crazy I been doing this alone since my son was a baby I have no help nobody... it's getting to the point where I just lock myself in my room to get a break from him I'm so stressed I'm tired of yelling and pulling my hair out please someone give me some advice