Is there anyway to stop feeling like I've wasted my life?

I'm already almost 25 and after college, and a bad break up, it's like I haven't done anything. My small social group has moved on, and I'm just wasting the days away, contemplating suicide.

I know a lot of people on here have it way worse. But I'm absolutely terrified of looking back when I'm 50 and being disapointed that all I did was play video games and duck around on the internet.