How do I cope with dying alone?

I am just tired. Every time I go on any social media app, I see happy couples and wholesome art and all that stuff, and every time it feels like someone is ripping my heart out. People always say, "Hey, you're 18, you have time," but if no girl even wants to Smalltalk with me, what does it matter that I’m still young? And I know I could go to the gym to look more attractive and all that stuff, but I’m gonna be honest, I don’t have the strength to even stand up in the morning for school right now, but that’s mostly because I get bullied a lot.

I’ve been in exactly 2 relationships in my life. Both cheated on me. The first one even multiple times, and it makes me feel like I am the problem even more. I don’t know if this sounds like the most emo stuff ever, but I just want to feel loved. And for me, relationship love and family love are 2 different things. I just don’t know how to end this feeling or how to live with it. Sorry guys for the rant.