One suggestion that helps quite a bit is once you get the assignment for the rest of the day, just put away and do not think about. Do everything else they would normally do throughout your day but leave that be. When the next day arrives, take it out and take a look at the first section of your assignment. This can be anything from instructions on how to proceed to simply a list of topics that you can choose from. If it is a list of topics that you can choose from then choose the one that most interests you and stick to it as your first choice is normally your best. This will allow you to begin research and writing on something that interests you and as such will make the entire process feel a little easier.