Sorry, I be been away from this thread for a few days and a lot of good stuff has been said.
First, benzos really degrade the quality of sleep you are getting. I ran on autopilot for the 10 years I was on them. Since getting sober, I get phenomenal sleep now, granted, not enough but I am so much more lucid. I didn't realize the magnitude of disruption benzos caused to my sleep patterns while I was actively using them. I equated passing out quickly to good sleep. Of course, the amnesia they cause could be a factor in me not remember if I slept lousy lol.
Second - when I was your age I was terrified of beginning my career. I was so scared that I procrastinated in school and ended up with a BS degree because I was scared to be trapped in a field I didn't like. I have a degree in philosophy, which does nothing for my career. Because of my indecision, I fell into software development accidentally - I have an aptitude for computers and logic. Now I'm stuck between a rock and a hard place. Because of my drug use, I couldn't keep a job longer than two years and burned many bridges by just quitting. Though I'm finally sober, I am
Having a hard time finding another development job in my area because I have lost a lot of my programming skills, again due to drugs, so I feel obligated to go back to school, which is a lot tougher now that I'm married and have a mortgage, and working full time. My advice to you is to resolve the drug problem now, and make that you're priority. Once that's resolved, soberly consider finding a career that you ENJOY and gain a sense of fulfillment from. consider your interests and how you want to focus your life. Don't focus of the money aspect as I have learned it really has nothing to do with happiness. I know people will disagree, but I found that money only buys freedom and will not eliminate insecurities or make up for the fact that you're making great money doing something you hate. There is no rush for a career right now, take your time developing a solid plan.
When you get sober expect times to be hard for a while before they get better. It's important to keep a proper perspective when you're feeling anxious and depressed, that these feeling are part of recovery and will get better. Unfortunately, everything takes time - just endeavor to persevere.