"they can kill it if only they had a"

Nine times out of ten, if you find yourself thinking in this pattern, you're making excuses not to start.

Find a way to get started anyway. Do something. Make a mockup out of pieces of paper. Find and talk to potential customers.

There are things you can do now, and they're usually things you really should do before bringing on a developer, or taking investment, or whatever you're blocking yourself with.

If you get to "if only" and stop, you may be in love with the idea of being a successful startup founder, but you're finding excuses to avoid what it means to actually become a startup founder.

Or a jazz musician. Novelist. Whatever.