Soo. Am I the only one?

My life is utterly pathetic. I'm hyperaware of my actions and what consequences they will have on the people around me. I never enjoy anything in life because I'm now sad my life is. All I have is a boyfriend. My future is so rocky and unpredictable that it's stressful. No friends. No support system and how am I supposed to be successful in life if I can't enjoy it. I'm 17 in therapy and feel like the world is just shit. I'm going to go to college soon and I am utterly alone in my existence. It's so sad but inconsequential at the same time I just don't know what to do at this point.