You are the company CEO, the technical lead and whole project brand in single person. You can delegate some of the management roles, but not the leadership - without your own vision, there will be no Resonite.

You are good enough to be loved.
Regardless of your work.
Regardless of your productivity.
Regardless of appraisal and approval of others.

You have problems with pathological people pleasing Froox, not with dealing with a negative feedback.

Nothing external will fix this - you have to work on this on your own. Being good enough is something that comes from within, not from external validation.

Being good enough will never come from or trough external validation. To be good enough is something you and only you can do for yourself.

Chase your own vision, not the fleeting compliments.

Any large scale dev project is never done, you will never satisfy everyone - but your vision, you can.

Don't curse your priviledge Froox, not many people can work full time on their own project despite all odds for over a decade. But on the same note, just putting in immense effort and overtimes won't magically bring you desired outcomes unless you have a long term strategy you follow to the T.