Does the thought of being alone forever depress you?

I dont know how to pull myself out of this depression... although I dont have any friends, I do have two jobs and I go to school... so it's not like Im completely anti-social. I tend to be a workaholic just so ill have something to take my mind off of my depression. When Im at work, I have no problem being outspoken and putting myself out there... but I can never seem to hang on to any friends... I just have the feeling that Im going to be alone forever.