Im 18 and i dont know where my life is headed...sighs?

okay so, this is a pretty serious question. I'm a senior in high school and recently, i got kicked out, not gonna get into all that. my rep with my school is horrible. my discipline report is 36 pages long...so i've been told. my grades doesnt cut it..overall gpa is 1.48. i wish i can go back in time and actually put effort into my school work so i CAN stress about college apps like other seniors, but hey, this is the life i chose. i want to live in luxury, be wealthy, and successful and all that. i told myself and my parents that im going to apply to a community college and transfer to ucla or any UC so i cant get my life straightened out. but honestly, i think its all talk. once that day comes, im going to be unmotivated like i am now. idont see where my future is headed. i've given up my dream job to be a pharmacist mainly because i know its impossible. i want to be either a RN male nurse or a sheriff in the la county dept or a lobster fisherman (heard they make hella of a lot of money) but is there any other career besides this that are suitable for me AND that makes good money?