That's a good beginning ! I'm not a specialist in fundraising, but I think you may be in good position for seed funding... if I understand correctly where you are. From what you said, I assume you have a product. More than a simple MVP, probably you are near the MMP. With your metrics, you need this (the MMP) to get funding. If you are at this stage, it is mainly storytelling. And here is the story:
You have a product, not a prototype. It is not perfect, but good enough to sell by itself with no marketing budget. And it produces its own slow growth without any help, and with high profit margin. Now you need VC money to market it and begin fast growth. But you can do it without them if they are too greedy, because your business already produces profit and can continue its slow growth without external capital.
If you feel your product is already good and you feel secure about your capability to bootstrap, it's a good time to search seed funding.If you need a few more weeks or months to feel more secure, take them, but don't wait too much if you have competitors running fast. Good luck !