Boystown national hotline?

Okay, I have had their phonenumber saved in my contacts for awhile now, just incase. You see, my depression comes and goes and I have ever cut myself before and contemplated suicide, but right now I just am really depressed and lonely. I get the most depressed during the summer. I want to call boystown, but I don't know if my case is serious enough. I've never actually called before, but I've looked at their website and seen the ads. It seems that all they do is work with suicidal people & drug abuse, and other abuse problems. I'm not suicidal, just really depressed. Do you think I could call them?l