Organize all the pieces of the projects and put them into bags or clear boxes so you can see what's there. Make an inventory as you organize. Then prioritize your inventory. Which is the most important to do? What one is needed next? Which one do you really want to work on next? etc. Put a sticky note on the bag or boxes. Take out number one. Put the others away. Finish that project then move to #2. etc. The reason you use sticky notes is so that you can revise your priorities as needed. They are out of sight so you do not feel the burden every time you go into your space. Work on the one you've chose and enjoy! Life too short. This is supposed to be fun! Good luck