Hmm, I'm gonna not be a jackass for once. Because your mother is kinda sounding like my son's mom. My son's 5. His mom's an alcoholic and goes out partying with her boyfriend all night leaving the kid alone. LEAVING A 5 YEAR OLD HOME ALONE!!
Talk to your mother. If you think moving in with your friends is what's best for you, and she agrees, go for it, but it's not gonna be easy. Not to mention there could be a lot of legal s**t that pops up later.