I don't have severe depression, but I do have mild depression.
I think what keeps it from being severe or hurting myself is that: I don't drink at all, I don't do drugs. Social phobia actually keeps me from hurting myself at times- like I know if I tried to crash my car- chances are that I would end up surviving and have to explain to my family/police/paramedics what happened, if I had scars people could ask or notice and it would cause more attention to myself.
I haven't been abused.
I have a job- having a job helps me because I can mentally complain about my crappy job rather than focus on my negative thoughts.
I sleep with the lights on- Im not afraid of the dark, but when everything is quiet and calm- the negative voices creep in and tell me how much better I would be dead.
To be honest, I don't understand how a person could have sa and not depression too.
I also write out my feelings, and have for years, and I take into account that my feelings can be melodramatic- i recognize that i have an anger problem (which i've heard said that depression is anger turned inwards). I dont blame the world for not understanding me or me not fitting in- i recognize that the burden is on me to understand others. I know i don't fit in on this website, but I post here anyways... i think the same is for life, it's ok to be here anyways.
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^ and I think thats a really good post, phocas!