I used to have the same problem until I came across this solution from a produced writer friend. If you have too many ideas, and can’t decide which one to do, just leave them sitting in your head for a while. 2-6 months works for me. Think about them when your in bed, in the shower, riding the bus, whenever you get a chance. The ones you can’t stop thinking about, you can’t get out of your head for six months, they are the ones you write.

So, step two. The writing. Don’t plan. Don’t outline. All of that should be done in your head in those six months. Just set aside two-three days. And write. Start on page one and, until you get get to page ninety, don’t stop. I don’t care if it’s the worst thing ever and neither should you, this is your vomit draft. But it’s finished. This document should have loose ends, plot holes and character paradoxes littered throughout. Because no one should see this EVER and it is really just for you to experiment with. Because now the work really begins for you.

Leave it for six weeks. Let it sit. Roll around in that big brain of yours. Start another project if you want. Then rewrite it Now you’re ready to show it to show it to somebody. Repeat cycle.

Hope this helps.