I agree with Robin here. I know for my literature class, our professor showed us a bit about how to do thesis statements for a certain type of paper we had to do so we could get a general idea. However, your paper is very personal to you so you should talk to your professor for suggestions. You can definitely talk to your professor or if the class has one, a TA. Also there are quite a few websites online that have a lot of information on this topic such as the one Robin linked to you.
Thesis's are tricky but once you create enough of them, the process will get easier.
Hopefully you do well.