Find a roommate and get your own place! Easier with bills and nobody to "boss" you! I would choose a person you know and trust though.
Got into a bind, moved in with a couple, now they treat me like their servant and yell at me even though I help pay bills. What should I do?
If you're not on the lease, then your option is to move out or to try and set boundaries with them. If they don't listen to you, then move out. No one takes advantage of you without your permission.
If you feel stuck and feel you have no options, they will prey on that and keep doing what they're doing. You always have options; sometimes they're not easy to see because they're hard to do.