What's the heck with the April server bill

I just got the April server bill from Render for my side project that I have been building in public for a while now. The bill is for $14 and the project generates $0, how do I keep the project alive? I am building [https://techinterviewexp.site](https://techinterviewexp.site), which is a platform where people can share their interview experiences and help others prepare for their interviews. It has a good DAU count, that I keep sharing on X(@hsnice16). I tried adding Google Ads to generate some revenue, but as we all know Google doesn't like good websites unless you make them messy so they can say that the site has lots of content. I have also added my GitHub sponsor page link in the footer, so the community can help to keep this project alive, but I haven't had any luck so far. Now, I am thinking of adding a closeable banner that will come from the bottom to notify that you can support this project. What do you suggest? (This project is also available to buy)