Motivation... Whats that?

I am having a real hard time getting motivated to study. I have a lab final on Tuesday, and I know I should be memorizing phylum names like Chilopoda, and knowing that they are centipedes. But I really don't care. I have so much more on my mind, and that's not just my whole brake up thing. I know I will never be over that, but I also know how to get my mind of things like that, which leads me to my next problem. What happens when you meet someone who you connect to instantly, and who touches your life. I don't know. And it's something I think about. Also about other complications related to that, but lets not go there, for I know some people may be worried and/or offended, and I wouldn't blame either group.
But back to that whole motivation thing. I'm not coming back next year, but I know I should keep all my doors open as long as I can, but I really don't want to. I really refuse to believe that me ever knowing that an spiders head is made of two head appendages fused together is ever going to help in the real world. And its not like I need to learn that especially as a pilot. So what the hell? I know, I know, it teaches me to work right, to study? Meh. All I can think of are my life’s issues, as selfish as that sounds.