feeling discourage

Its 5 days away from school and im getting more and more afraid of going the fact that I just don't like people looking at me or talking to me because if they talk to me im going to be afraid to talk back or even talk loud enough so they can hear me im going back to college last year wasn't so bad because my sister and my friend was with me and I felt that I was ok because I thought that all the attention was on them but this year im alone and I am really thinking about not starting school not because I don't want to go but because of the ppl that goes there I want to move forward with my life but Im having a very hard time I just feel like im left out on alot of things Im 24 now and I have notice that there was something different about me this has been going on since elementary. I am just now receiving help but the depression medicine just make me sleep and I can't do that on a job or at school. IM getting very aggravated because all of the medicines they are giving me don't help and I wont see a therapist until next month after school has strayed.