It's tough, hey! At the age of 24, I have a list of 'prior areas of study' long enough to make people's eyes glaze over. But at the end of last year, I finished an Advanced Diploma. Only half of a Bachelor's degree really, but for me it felt like an end to the biggest struggle. The way I eventually made it through and finished something I started? I studied only subjects that interested me. Not majors or minors, just the individual subjects. If the subject spec bored me, I wouldn't do it. My reasoning was that if I had to study a boring subject to get a career, something about that career would be boring, and why spend your life on something boring.
I worked full-time in several different industries for several years in between this studying, and tried to get as close to the areas I thought would be interesting as possible. My main position may not have technically been in the field, but I offered to help out that area when they were busy and made sure my managers knew that's what I was interested in. Consequently, careers i thought were my passion got dropped by the wayside once I saw the realities of them. Much better than if I'd studied the boring subjects believing they would take me to my calling and then discovered I hated it.
Look at the sorts of clubs you're involved in, and what you do that makes you enjoy them so much. Maybe that can give you some hints. (IE if you're a treasurer of a club, maybe accounting's for you).
Don't despair, i'm sure there will be plenty of other suggestions for you
Good luck.