Out of Control

I've been having nightmares lately. Lots of nightmares...about people. People I know and love...and am worried for.
I understand that I can't control peoples lives. In fact whenever I try to help my friends, I normally screw things up worse. But when I don't get to see my friends or they are away on vacation I get scared for them. I feel like I need them around for me...and I feel like I need to be right there for them. But the truth is I don't need to be. It's more of a selfish thing.
But I dunno what to do.