I have trouble getting to sleep early too, being a nighthawk. Working 9-5 makes it all the worse. Two suggestions, one good one bad. Good one: just start going to bed at 10:30 every night, and set your alarm for 8:00 every morning. Eventually your body’s rhythm will fall in sync.
Bad one: drink a bit of NyQuil around 9:30. Go to bed at 10:30 and you will be out soon enough. I use this one when I’m having trouble sleeping. It’s not the smartest thing to do, but if you don’t abuse it (ie: do it every night) it can help.
Good luck with it.
Also, may I suggest, if you’re looking for a direction in Life (or at least in looking for a job) try to find something you’ll enjoy doing. It’s better than ending up doing something you hate.
Good luck with that too.