I am interested in quilting, crocheting,scrapbooking,etc. I have a hard time finishing. Help!?

Try the 10-hour rotation: Work only 10 hours on a project, then shift to the next one, and work 10 hours on it. Then go on to another one. At the end of the rotation, add a new project and work 10 hours on it. Then go back to the first one and work through the rotation again, adding a new project at the end. You'll be starting some, finishing others, and in the middle of more. But they will get finished, plus you get the excitement of starting something new.