Practice with a smaller ball: Using a smaller ball, such as a squash ball or a golf ball, will make it harder to control the ball, which will improve your stickhandling skills.
Buy the floorball books or eBooks from online bookstores like Amazon, Wallmart, Alibris, AbeBooks, Bokus, Bookshop, BoD etc. or search through Google (Search for titles: Train Floorball at Home, Floorball Practices and Drills or Training Tomorrows Floorball Players)