Care.

I always tell myself high school isn't the time to get in relationships. They'll stop you from achieving your dreams. Even though I tell myself this all the time I care too much.
And better yet it's a guy that I don't know how to make happy. I had my time of "Woe is me. I want to die. Why can't it all stop now?" But I got myself out of that rut with help from my friends. I wasn't the friend and I didn't realize how much shit they went through to help me. Now as I try and guide my friends away from suicide I realize just how difficult that job is.
Appreciate the people who stay up late just to talk somebody out of suicide. The people who are always there no matter what they have going on in their lives. Those are true friends.
And they care. They care so much. Every single person has someone that cares about them. Even if the only person who cares is God. He cares.
But you're never alone. Never.
It may seem as you are alone, even if the room is full of people.. but you aren't. Maybe there is a person on the other side of the room that's watching from afar. (Not creepily.) Maybe your old friend who you haven't talked to in a while is thinking about how they miss you. Maybe there is a guy/girl that sits there wanting to walk up and talk to you but doesn't have the guts.
You're never alone. Trust me.