im lost in life, and need advice

so, i'm a young person from the uk and in college. i'm doing a subject that i have 0 interest in pursuing and i'm only there because of recommendations from my family.

and because i don't care about it, i haven't been doing any of my assignments, my family is starting to show some disappointment in me, since i'm following the same route my sisters have. when i'm at home, which is most of the time, i'm on my computer playing games or watching youtube or something, which led to me having pretty bad social anxiety which i've been trying to improve. i know i need to do something with myself, but i'm uncertain as to what that is. i don't know what interests i have, and i can't think of anything that i would possibly want to do for the rest of my life. i need to know what can help me find my purpose. does anyone have any advice?