Get a grip

I feel like writing but I hardly know what to write. My mind is not my own right now. I feel like my head is completely full, but full of what I couldn't tell you. It's like it's filled with nothing, and yet filled with everything. I'm not entirely sure if that makes sense, but right now I can't make sense of my thoughts. It's odd because I feel like there are 15 different thoughts floating around in my head, and when I feel like I'm going to be able to concentrate on any one, it slips away and some other thought takes it's place. So far it has been a continuous cycle. What to do, what to do?