Create your own Graphic Organizer
The best way for you to learn this material is creating your own graphic organizer. Use a a basic tree map (main topic, then a second level of organization, then the actual people).
Title your graphic organizer Italian Renaissance. Then, the second level have the Early, High, and Late Renaissance. Use the internet to aid in organization. Then, under each, the third level have painting, scuplture, archecture, literature. The final level is for the humanists.
Good Luck.