If home is where the heart is, then we're all just fucked

I'm stressed. This is the second day straight that this stress is felt on the physical plane as well as the emotional one.
I can deal with emotional stress. Pretty good, actually. I put it in the back of my mind and I ignore it like nothing else matters. And it works. And I can function without being a wreck.
The physical stress is a bit more tricky. I feel... shaky. Like I'm about to burst out crying any minute now. And I probably will. My entire body feels tensed like hell. I'm edgy, I snap easily, my temper rises to dangerous levels with great ease. I'm a hazard to my surroundings, I really am.
My mum told me I give her negative vibes. I found it terribly offensive because I walk in the door and nobody cares I came home and when I go to let her know that "HELLO! I'M HERE!", she says I give bad vibes. Gee, mum, I don't know. It might just be the shaky mental situation I'm in. But you would know all about it, won't you mum? It's you being a depressive useless fuck that made me an unhappy kid that grew up to be an unhappy adult. It's that negative vibe that YOU gave me my entire life. You can't expect someone to grow up sane with a mother that can't deal. And now I can't deal. With anything. I'm just a one big mess.

I'm going to have to get through this and get over myself, and soon. Otherwise I'll fuck everything up and I'll end up like her, a secretary in a workplace I hate, doing something that holds no interest to me, stuck with unfulfilled wants, needs and dreams. I have to snap out of this, if only so I won't have to be like her.