Working, working, working

I'm up to my neck in manuscripts over here. I have so many going that I don't know what to work on next. I signed up for NaNoWriMo (National Novel Writing Month) and I put in a manuscript, then changed my mind and put in another one, then went back and put the first one back in. Now I'm thinking I made a mistake and should've put the third Love Under Construction novel, Renovating a Heart, as my NaNoWriMo project. Is it possible to have too many good ideas? I never thought so before, but now I'm beginning to wonder.