There have been many advances for you from the members here, hopefully, you are reading them.
Btw, the gambling world has many competitors, and if you are willing to have good revenues and also many users, try to do your best in your gambling sites.
About marketing strategy, look at many gambling sites thread in this forum, they clearly made an official announcement of their official website thread, making it very clear with the information, link of website, pictures of the games, and many more programs. And they are always updating the progress and development of the sites.
But, in fact, you only made very simple information. I think you need to learn better how to promote your website, moreover, you are as a marketing person.
Try to learn from other websites thread here, they gave you very good examples and reasons.
Most of the new or old gambling sites moreover related to crypto also do a Signature campaign in this forum that it will really help to promote your sites. But sure, progress and development will not very soon happen. It is by the process.