(Optional) Please come up with 3 more ideas that your team wouldn't mind building. Each on its own line.
Rovio was Angry Bird's 52nd game. This means that you might not hit jack pot with your first idea. The point of being an entrepreneur is not only to build, but also to scrap and move on when needed. These 3 ideas that you have come up are ideas that you can pursue if in case if you can't pick up traction, or you've hit an untangible blockade that'll stop your startup from moving forward.
It took Rovio 53 tries to finally get the theme right. Star Wars.
However, don't mistake the lack of traction as an evidence that your product doesn't work. Very often traction comes with time. You need to spend enough time to measure every part of your website, and talk to your customers to know what you are doing right and wrong. Usually the only time you will need to give up is when you're solving a problem that nobody has. If the solution is bad, then you can still pivot or tweak it to make it work.
Read about startup metrics in a future stage to understand where your product is breaking.
(MUST READ) There is no overnight success.
How to find ideas?