After almost 8 months my app start earning my first internet money for my public toilet locator app after declining $500 offer

I made a public toilet locator app 8 months ago, it got viral multiple times and got an offer $50, I didn't sold. I got another offer at $200 still I didn't sold. And then last week $500 for 50% stake still I didn't sold.

I posted it here and got lots of great suggestions so I followed it, implemented google Adsense and now I earned my first internet money. Currently my earning is 1.5$ . Its a very tiny amount but for me it felt so great! I feel that my hard work pays off and the most important thing is the learning along the way.

PS: Hoping my decision of continue bootstrapping it is right, but will continue to make it right.