What should I do next to attract buyers for the coin given the fact that even I havent bought yet? The contract is simple and easy to read and the entering is cheap - only one satoshi.
It's literally all about marketing and nothing more and if you have zero buyers right now, I would say close it down and do not work on it afterwards. This doesn't mean you should not make a new token, you can try to do something better in the future, but this one is already dead, you are not going to go from zero at launch to being big in the future, that's not going to happen.
First of all, you need to be part of launchpad communities, go join pinksale for example, they have a telegram and at that network telegram you can learn more about it by asking people this same question. But more than anything else, if you have zero budget for marketing then you are not going to end up with any money at all, it just doesn't make sense to others to fund you if you have zero.