What are my options for my life?

I am 18 and graduated high school about a year ago. After that I worked full time from september to december at my retail job where I was pretty much miserable so I was in the frame of mind that anything would be better than that. I went to the local university for general science because I enjoy science but I only did it to escape working my full time job. Because of that I knew that it wasn't going to lead anywhere and that I didn't want to put all my time and money into 4 years of that. So that semester ended and I am being forced to go back to full time at that horrible retail job. I have been looking into labourer jobs in the area and applied for a few with the county and the city but so far no call backs yet. I feel as though I would really like to do something more exciting instead of the 'get up, go to work/school, come home, watch tv, go to bed, repeat' lifestlye that I have been doing since I graduated. After my failed university experience I am alot more apprehensive in jumping straight into a post secondary program for fear that I will end up hating it and wasting more of my time and money. More than anything I am so done with working retail. Are there any options that I am not seeing or have not heard of? Thanks in advance.