How can I become more optimistic?

Recently, I've noticed that my one or two of my friends have taken to cutting themselves. I'm concerned for them... but I've done the same thing in the past and they know it. How do I confront them without sounding like a hypocrite?

In the past I have self-mutilated and recently there has been a lot of added stress to my life. I've heard about wearing a rubber band on your wrist as an alternative. I was just curious are there any downsides to this method, as an example I have been doing this for a week now and I have gotten a bruise on my hand, it probably isn't from me snapping the rubber band but I was just wondering if there is anything I should know about this method? Thanks

It seems like me and several friends have been going through a bit of disappointment/boredom with life after graduation. I work long hours and am too tired to socialize like I did when I was in school. I was just wondering if there's such a phenomenon of post-college depression?

Are there any techniques for controlling crying? I doubt that my problem requires clinical attention; however, it frequently manifests itself as a serious handicap. During conflicts (particularly with professional superiors or with significant others), I find myself unable to defend my position, which only makes the problem worse. Sympathy only tends to aggravate the crying and it is impossible to stop once it starts. I am a twenty-four-year-old graduate student, and I don't seem to be growing out of it. Any suggestions would be greatly appreciated.

I'm desperate (a permanent state, I suppose, not only for me, but also for most of my fellow human beings). I've forgotten the reason why I'm on this Planet. My life seems so senseless, eating, sleeping, going to work, hobbies, of course, while all around me, the world is tumbling down. How do I put some meaning in my life?

My best friend and I got into a fight. It's been a month and he won't speak to me. He says that he needs time, but that's the one thing I can't give him. I feel so hopeless and I've gone back to cutting after being clean for 11 months. I'm just so sad all the time and it just hurts — so much more than I know how to describe. And I know I shouldn't allow my happiness to be dependent on another person, but it is because he was the only one that actually cared. And I just don't know what to do. I can't bring myself to go to see psychological services and I tried calling hotlines, but I just can't go through with it. I'm trying to move on, but I just want the pain to stop. I miss him so much. And I apologized profusely, but he doesn't care. He doesn't care and I can't handle it. I'm just so upset and I just need help. I don't know what to do.

I am a 22-year-old male grad student, now starting my second semester at in graduate school. I have been doing very well academically, but my studies and my work-study job leave me absolutely no time for a social life! I have not been on a date since I got here; though I meet a lot of interesting people, and am in the habit of collecting their phone numbers. However, I can never seem to find any time to spend with them. Sometimes this really depresses me. I have noticed that I have lately been smoking much more heavily than I used to.