There's a graveyard on my computer, filled with half-baked concepts and unshipped ideas. It can feel pretty crappy to see all those things that were once so thought-provoking and exciting sitting dormant, broken. What would have happened if I'd followed through? What might things be like if those ideas had come to fruition and gotten real feedback from real people?
Right now I'm just trying to not get hung up – there will always be more ideas, more things to learn. It seems like the key right now is to embrace the graveyard as a symbol of all the things that were tried and learned, not as a reflection of failure.
All the more reason to respect those who ship side projects: this shit's hard.