Huh? How in the world did this thread turn into a discussion about cars? How did we suddenly witness members competing for the title of "coolest" with choice of material things? Uhmmm. . . . I'll just crawl in quietly and crawl out carefully, lest someone hurts me with the strange discussion. LOL!
Anyway, to the original poster: I swear . . . I really can't understand posters that come posting rants about their personal lives but hardly are specific about events. If you are so private that you cannot disclose any details, then why bother posting and asking for advice? You know you can just enter a disclaimer: Rant, no opinion or advice expected, and none invited.
Really though, how do you honestly expect people to objectively give opinions if you're only saying how what dad said wasn't really your reason for leaving, but you won't be specific about incidents that led you to depression and later move out for sanity sake?
Using your biased report, I'll say the following: Your mum's exhibition sounds familiar. I hereby dub your mum 'drama queen'. It can be frustrating if you don't learn to deal with dramatic people. For someone who's lived with his mum for 23 years, I would suppose that you would know to ignore drama queens once they start with their fits. They'll eventually stop on their own. You have to act indifferent at some point, you know. I am not saying you should never consider anything your mum says. In fact, you should. You should however treat it as something to be considered and without giving it too much weight automatically, especially because of fear. And don't respond to fits thrown.
Again, it is hard for me to give an objective view when you have posted a complete bias. For instance, you have failed to explain the economical circumstance of your parents. Did they partly depend upon you for financial support? If they did, then it might explain their desire to have you back in the house. If not, then you are on the clear. You should stay independent. However, don't you ever return to their house because you cannot afford rent. Live on the street if you must, since you made this decision.
Also, don't try to create a false dichotomy. You do have an option: You can move out, yet reconcile with your parents. Moving out is a reasonable thing to do at your age, independent of your relationship with your parents. At the same time, moving out helps you to clear your mind, tolerate things more and willingly reconcile with your parents. When you live with them, then everyone starts stepping on the others' toes. As a result, you get impatient and easily agitated over minute things. It doesn't help at all too if you have a drama queen in your house.
So stay put, but try reconciling with your family. Give some space first. Don't feel obligated to respond to every statement or call you receive. Your goal is to calm things down first for everyone to begin reasoning. When all is quiet, then you pick up the phone or write a letter to your parents, in effort to reconcile with them. You have to be willing to concede to things and make compromises. Be true to yourself; and be honest with your parents.
Best of luck!