i’m 18 and live with my parents. I want to hang with friends but parents prevent. Can they control that. Am i able to just go without their permission

You became an adult when you turned 18 years old. However, because you live in your parent's home, you are subject to their rules. That's not the law. It's just the truth because they pay the bills and they're your parents. You should google to find organizations that help gay teens. Way too many young people end up homeless because they leave home too soon. Do your best to work through the issues with your parents until you're able to take care of yourself.