My life is out of control

I've been feeling so overwhelmed lately i don't know what to do. Carter is out of control and these terrible two's are destroying me. I don't know what to do with him. He won't listen to me at all. I've tried everything. I take him to the park because that is his favorite thing and he is horrible. He is constantly trying to play in the road even though he knows it's bad. He tells me it's bad but then goes and tries it again. Everytime i try to put him in his carseat it's a huge battle. He throws himself back and arches his back and won't let me buckle him in. It ends up him screaming and me almost in tears by the time i get him buckled in. He now refuses to go to sleep in his bed. Brad and i don't get any time to ourselves in the evenings. He has to either go to bed with Brad and me or i have to let him fall asleep on the couch. Naptime is a nightmare too. He refuses to eat for me and Brad but will eat for our parents and the babysitter. We can't take him to restaurants because his is completely horrible. It is so embarrassing that i can't control my own child. He is now horrible in the store too. He throws a fit because he wants to walk and i try to let him but then he tries throwing things off the shelf or running away so i have to put him back in the cart and then it's a battle just like the carseat. People stare and i feel like a horrible mom who can't control my child. Which i can't. We have been having financial problems for a few months and that doesn't help either. Brad is pressuring me to get a full time job and i just can't go out and get one. Plus, that won't really help much because child care is so expensive. I am trying to finish my classes but i never have time between working part-time and taking care of Carter and our apartment. We are really wanting to buy a house but our credit sucks so it's going to be a while before we get one. I just feel trapped and i don't know what to do. I feel like i have no control over anything in my life. My body is gone. I have gained so much weight and feel so gross and don't have time or energy to exercise. I feel suffocated most the time and just want to scream. I just had to get all that out. Sorry if it doesn't make sense but i thought maybe writing it all out would maybe help me a little.