How to not be a unsocial wreck

I really need interactions.and people to talk to and a social life I kid u not I go to school in the morning with my parents talk to my friends(girls) and obvs I have nothing to talk about cuz I do nothing go no where and then I go straight home with my parents and then I'm in my room and then everything happens again everyday also it's like a strict household so u can't go anywhere yourself or anything+ I'm underage so help what doi do everytime I'm alone or by myself or alone in a crowd I start thinking and the moment my brain starts thinking I feel melancholic and anxious and stupid teh only way I'm okay is when I'm.not thinking but like I can't focus on work or anything either and I have social anxiety...I'd tehre hope?