How do people figure out what they want for a carreer?

Nothing is wrong with you. Many people begin their "careers" (i.e. going to college or even getting a job) without knowing what it is exactly they want to do for the rest of their lives. It isn't a bad thing. With some people they find out one day that they have a passion in building cars or taking care of children. Others have abilities which they've developed but aren't aware of them yet. I wouldn't recommend putting so much thought into it. The fact that you "fall in love with things quickly" but "lose interest" just as fast shows that you have a lot of potential. If you have to make a choice that you think will have life-changing consequences and you aren't sure whether to follow your heart or your mind - follow neither. Instead, focus on how you feel in your intestines (right below your stomach). This is practically your gut feeling. If you feel sick deep in your belly, I would recommend not making that choice or staying on the path your are on. If you feel okay down there in your belly, then you can count on not regretting the decision."The question isn't so much 'what am I going to do with my life' as it is 'what am I going to do next. I'll end this response with a link to a page of The Huffington Post that may apply to your situation (of course, it wasn't really intended that one would notoriously become motivated by it - it may or may not interest you, and that's alright).

For myself I went around between 50 options but always had a top set. The top few for almost five years (more or less) where Teacher, or some sort of Social Worker. Than this year I worked with Special Needs & it was just fantastic & my love for that overcame everything else & I decided that I wanted to teach people with Special Needs. The great thing about the qualifications I'll have is that I will not be subjected to just that I will be a qualified SSW, Resource Teacher, Supply Teacher, Etc.It may be something you've loved forever, or one day something new may take you away like it did for me. Good luck! Don't stress!