When it comes to a heavy load of projects, lists are invaluable. However, there are levels of lists in this aspect of project management. For instance, you want to first list all the projects out by hand (or on a word document). From that list of projects, assign deadlines to yourself (or write the deadlines given to you). If you are writing the deadlines given to you, it's usually a good idea to set the deadlines up by a couple of days. Being done ahead of deadline can help you look even better and more professional when it comes to project completion responsibility.
Looking at the completed list with deadlines, number them from 1 to the last number of projects you have. The number one project should be the one that's due first. This is your first aspect of prioritizing. From there, you want to consider the projects from most to least important. The most important project gets a 1 down to the least important. Each of the #1 projects are ones that you must commit to working on each and every day. Look at the remaining projects to decide how you want to divide your work hours.