I'm honestly afraid there's a problem with my sanity?

Please only answer if you know something about psychology. Let me start this off by saying im not over dramatic, and i'm not making this up. Sometimes i get really mad over little things, and i have these fits of rage that i dont quite remember in its entirety after they're through. But i throw things and scream and cry. I try really hard to be level headed but i cant control myself sometimes. I sometimes drink too much to get away from stress, idk if thats really related. I hear static in my head sometimes, like when tape players were popular and your tape was finished playing, like that static. Lately ive wanted nothing more than to be a kid again, its taking over my life. I hate being 17 and ive gone back to listening to the music i listened to when i was like 8, and watching movies from then too. My personality has changed back to something like it was when i was a child too. I've researched age regression but apparently its only a thing used in hypnotherapy, not something your brain can do on its own. Im really scared, and confused, and tired of living my life, im not suicidal but i want it all to just stop. Any advice? answers? id really appreciate it.