If the day was longer, we could do so much more. The way that is is, we have to choose the projects we'll do and hope to do others later. The choosing is tricky when you have lousy options, as you have to see which one you think you can salvage or reinvent, but it's even more difficult when your options are all good.
The opposite applies then: look at the projects you can't leave for later, the ones that are exploding in your brain and need to be put on paper, look at the people you most want to work with, and really see what you want to do right now. These are the projects you must do, and you do them to keep the fire burning so you'll shine when you do every other thing.