First step - You have to like yourself. Nothing in your life is ever going to end up working out if you can't enjoy who you are. You need to take care of you first and foremost.

Surely you have interests. What are they? What one interests you the most? Do you think that there's a market for you to sell the product of your interest in a way that will allow you to live the lifestyle that you want? Could you create one? Are you willing to do the amount of work that it's going to take to monetize your interest? How about #2? #3?

Let's say you picked something. We'll go with underwater basket weaving. Hop on Google, and search for some underwater basket weaving forums. Pop in, say hi. See what's going on. Still look like fun? If so, keep searching. See if there's a local underwater basket weaving club. Stop by and see how things work. Talk to people. See what their experiences are. Put yourself out there and give it a shot. Oh, damn. Turns out that you don't really enjoy the whole underwater part of underwater basket weaving. Back to searching. You didn't fail, you just found something that didn't work out for you. You're one step closer to success.

Let's say you have decided that you just want to have your interests as hobbies. You're not inclined to turn your interests into work. You want a "traditional job." We'll go back to our previous question. What kind of lifestyle do you want? Ballpark how much that's going to cost you. Aim high. You'll probably want a significant other at some point. Maybe even a few money pits -- er, kids. What kind of money are you going to need to make to fulfill your needs and those of your potential family? Search for jobs that pay in your determined range. What one looks interesting? What do you have to do to get there? Are you willing to do it?

Don't get all bent out of shape because you don't know what you want to do. I'm 25 and am finally starting to aim myself down a course that I think I'll enjoy. Maybe something else will catch my eye along the way. Maybe I'll show up day one, diploma in hand and realize

"Holy shit, this is not for me at all!"

Oops. No big deal. At least I'm progressing somewhere.

The road to success isn't straight. There's likely not going to be a nice, smooth path for you to travel with a rainbow and a pot of gold at the end. There are going to be great times, where it feels like you're just cruising and everything is clicking. There are going to be times when it feels like the world is beating you up and kicking you when you're down. But you won't be worried, because you know that you're getting somewhere. Enjoy the journey.

Lastly, if all of this seems like the ramblings of someone that just got off a 12 hour shift and should've been in bed about 2 hours ago, you're completely right!

Edit - Markup, again.