It seems when ever I finish a large project , I need to "cleanse my brain " and do a few smaller one night type of things, typically done with scraps from other projects. Cleaning my sewing room also helps to cleanse.
I too have more fabric and patterns then I can complete in ...well a very long time. It easy to get stuck in "which one" ! Give your brain the breather it earned !On some level its telling you your not "up" for another big project just yet. So make a few potholders,try a new technique , just play for a bit .