Brainstorming

I absolutely hate that I'm taking another writing class I think this is like my 3rd or 4th one. I'm working on brainstorming for my paper on caffeine. Its been difficult I figured that I would find a lot useful information but its been really hard to get good information for my paper. I kind of want to change the topic of my paper since we have not started writing it yet. I don't know I kind of confused at this point.