Sounds pretty fucking stupid sonny boy.
if your current situation is shit.
uncatalogue exactly what is wrong and or missing in your life and find the right people to address this situation, which may not be your parents but someone like a social worker or something.
Making some dramatically bold statement where you throw everything away and go be super sad homeless isn't going to help anyone it just shows are clear lack of insight and reasoning.
I mean when you go to sleep even in your heated home you sleep under a blanket.
And when you get soaked in the rain you will get out of those wet clothes the second you get home, but when you are homeless being wet and cold aren't minor inconveniences anymore these things will be the fucking bane of your existence.