I studied English literature in the honors program, which means that you had to take courses in various centuries. You had to start with Old English, Middle English, and work your way toward the modern. I figured if I did that it would force me to read some of the things I might not read on my own.
I just got tired of being sick and tired and feeling down. Unfortunately, you don't realize this until you're getting sober but the reason why you're depressed all the time is it's the drugs that are depressing you.
Develop a passion for learning. If you do, you will never cease to grow.