You're still getting used to your freedom, which is perfectly normal. Enjoy it! You don't have to ask anyone for anything if you don't want to anymore :)

I'd probably be doing the same..

That means move out

I'd imagine that you're pretty close to your mom for doing something like that. Especially understandable if you either moved out recently or still live with them haha

Um no, obviously you're twelve.

Why did you ask her? If you want to inform her you are going do that, but grow up a little.

Don't stress, I have a friend that's 28 that would have to do this

I had to do this when coming back from college. My mom was always an overprotective and controlling parent so she always felt like she had to know where I was at all moments of the day. It feels nice having freedom in college.

It's not your fault you were institutionalized most of your life.

It gets better. I know the feeling. My mother was extremely overprotective when I was underaged to the point that when I did turn 18 and was told, "You're legal now. I'm no longer liable so I don't care", I still struggled with the urge to ask permission for everything. When the 'freedom' hits, you're gonna love it. It's like seeing the world for the first time ever.