I'm with Wren on this one. You need to go out and sweat for what you want.
Suggestions: I took college classes that didn't challenge me and so I started researching and going in-depth on subjects that I enjoyed and challenging myself. The professors saw this and became amazing mentors for me in the fields that I wanted to study.
Get yourself in a class that you aren't prepared for in any way and then work your butt off to do well in it. I took college calculus without taking pre-calc or trig and I ended the class with the highest grade (after a tremendous amount of work).
Chris1234 has a good suggestion for a technology career. Things are constantly changing in the technology sector and if new languages or technologies interests you at all, there will be plenty to keep you challenged as you move forward. Even if the work itself isn't challenging, it will allow you to self-teach and will open up opportunities for you to learn and apply whole new languages or technologies.
While I don't necessarily advocate job hopping, that helped me a lot also. I just kept moving around from company to company and soaking up as much as I could about their industry and then applying that to the next job. My salary also went up faster that way too. I find that with most jobs in the past, I was bored out of my mind by 6 months. Now I'm with a company that is in constant change itself and it's a challenge just to keep up with. And they only hire the best, so it helped to have all that knowledge from different industries under my belt.
