I Am Depressed Because I'm Lonely

I'm tired of being alone. The reminder from social media posts of my friends with their significant other really hurts me.
I'm a good person. So, why can't I be rewarded too?
What really hurts me the most is when I go out w friends and my mom says, "Why are you going with friends again? Why not focus on finding a nice guy and settling?"
I can't win ever. I hate this feeling and every time she says that I just wanna cry and call my friends to tell them I'm not going.
All I want is for a guy to care about me regardless of how I look. Instead I get burned and come back home, crawl into my bed, cry and be reminded that once again I'm alone.