I've been going through the same with my recent project. I think this simple sentence might help you: no one really cares. Seriously, I've emailed ~10 potentia

I've been going through the same with my recent project. I think this simple sentence might help you: no one really cares. Seriously, I've emailed ~10 potential customers, and have been in direct contact with people I personally know, offering them the software completely free in exchange for review/feedback. They created accounts, but never bothered with actually using it. So getting initial feedback has been difficult. So, just keep that in mind: most people don't care. But if you manage to find some users, do your best to take care of them, listen to their feedback. Implement features for them, etc.