Mom driving me insane literally?

I like to think I'm a logical sane human being. I'm reasonable, done stupid **** your average teenager would of done in their years. I'm 25 now, and recently had to move back into my parents house. It's been almost 5 'months and I just started a new job. Now that my cars fixed and what not my next step is to get the f**k out. My mom treats me like a child, will do my laundry before I can. Even though I know all the clothes are dirty, she'll sniff (seriously) every piece of clothing to make sure. She reminds me to get ready for bed even if I'm already lying in it. She assumes I hate her and acts all depressed sending me text messages and even if I approach her rationally will refuse to talk. It's Sunday, I'm tired from work and doing yard work earlier today she's turning me ******* insane. Never in my life did I contemplate for a second taking a ******* knife to my throat. Lately I go on walks or just stay the **** out of the house to cool down but for how long. I'll be looking for a place of my own soon but have to rely on a promotion soon before I financially can support my self. Advice? Thanks.