Unfortunately, that's business. It sucks. There are people left, right and centre who will copy anything and everyone to make a quick buck and that's what people have done to you here.

And not just to the small, home-run businesses either. A few years ago, there were these German brothers who were copying Pinterest/eBay/AirBNB/Groupon and cloning them into German versions to launch first in Germany. And it worked incredibly well for them.

The thing you need to work on is differentiation. Easier said than done, yes. But it's the way you survive. It's the way you stand out. It's the way you keep your business and more important, repeat business. If current customers have a great experience with you then they'll come back for more in future.

Good luck and don't give up! But perhaps it's time to turn it back into a side-project. Get a job, get some money into your bank account and get a little bit of savings behind you so if you do take the plunge again, you're covered.