I'm sick of my life and I don't know what to do

I (20M) was never really a social person and spendy my middle school alone but I was able to make some friends in high school

However, ever since I started my Bachelors I've struggled to make friends.

I've tried joining clubs or participating in events but even when I do manage to have successful conversations I can't manage to turn that into a friendship. Considering how the year just ended I'm not going to have a chance

I never minded being alone when I was younger but my loneliness is really starting to really affect me.

I've lost any internet in watching tv shows or movies or playing any games, I can't find the motivation to study and always feel tired.

I've also started to constantly fantasize about being in a romantic relationship and worry about if I'll be alone for the rest of my life despite the fact that I've never had any interests in relationships or even an IRL crush.

I also have a porn addiction that's growing worse and I'm worried about its long term effects on me.

I've also never had any online friends before which means I don't know where to start.

I really need help.