>> AT some point, you get conviction, this will work and worth pursuing full-time even though 0 revenue to begin with.

My conviction was seeing myself using what I built growing from a few times a week to everyday use. Then when one random signup hit the analytics, I watched that person come back consistently too. That was the shift.

The harder part is the gap between "people use it" and "people pay for it". Usage is validating but it doesn't pay rent :( hence I press on.

"people use it" and "people pay for it". Whoever figure out this gap and close it will win