Feeling really low rn!

I'll keep it as short as possible as no one's gonna take the efforts and read it fully. I'm an introvert I don't even have a best friend the one I had replaced me (2022) ive been in relationship once for like 3 months in 2023 and she left me because of her ex.. Now since a few days I've been seeing a lot of my classmates and people i know who are in a happy relationship or even good friend groups where they hang out w each other, or even even families going to Goa, foreign trips, mumbai etc or 5 star dinings.. I have never experienced such things as my family is really dysfunctional and I'm planning to leave this place once i complete my 12th boards this year and Join DU!! Atm I just want a loyal partner who'll always be there for me, support me but all i get is betrayals, I got betrayed even by my own fuckin father. So fed up of my life idk when things will get better.