Actually, if you're developing the game alone, your update speed is quite fast. But if you're not working alone, I think you should release an update every 15 days, generate ideas, and focus on advertising. This way, you can reach more people who offer ideas, provide a better game, and increase your revenue. If you want, I can advertise for you for free on my DeviantArt account (I don't have that much interaction, but I think it will still help you in the beginning). If you accept, I can contact you through DeviantArt.
I am completely alone on this project. The pace is only fast because I am trying out things and accumulating technical debt. I intend to spend some time working on things under the hood now. Refactors and simulator primarily. I am also using that "pause" to look for an artist to work with since I really dislike everything about my current art workflow.
The 15 day (or any interval) idea sounds good when the project grows into something more stable.
As for the DeviantArt I would appreciate any help. Here is my account link: https://www.deviantart.com/veryweirddev