College? What do you do for a living?

Brenna
I am 21 years old and I definitely want to do something with my life but the thing is, is that I still don't know what I want to do or be. I have always wanted to work with child or animals but I have such a soft heart that I won't be able to handle a bad situation very well. I am also not the brightest, I was lucky to graduate high school, but I know if I find out what I actually want to do I will work hard to become it. I also not sure how online colleges work. Or the payment processes or anything. I just need help guys? And maybe list some professions or your profession to help me get closer into knowing who and or what I wanna be.