When I started really quilting - I would not let myself start another project until I completed the one I am working on. I've been pretty good about doing this unless I run into some kind of a snag with what I'm working on and just have to leave it alone for a while. If I got too many projects going at one time - I'm like a kid with too many toys - don't know what to play with and get flustered. Anyway - that is what works for me but we are all different and unique. Sometimes it helps to treat yourself when you finish a project that's been hard to finish - maybe a pedicure or a movie or if all else fails, you can always treat yourself to the local quilt shop!!!?