[AlexITC]

First of all, congrats on reaching $500 MRR, I have been running my own product for longer and I'm still not there yet, I also know many friends in a similar situation.

Related to sales strategies, have you considered talking directly to people? Try finding a niche where you product is well-received, then, ads could be better targeted.

Also, by trying your website bot, I typed "How much does it cost?" and the response was huge + some html tags, I can imagine that potential customers wouldn't be keen to get this in their website.

In any case, talking to people could help you to discover why people is not purchasing the product.

Good luck.