Forget SEO, your competing against some big-boys that have no ethics or moral standing.
They will crush you, they will out SEO you if you’re taking any of their business away from them.
Really, find an ethical business model to promote and not a White-Label gambling site…
If you want to do SEO, do “Client SEO”, get paid to help small businesses get ranked.
The best tactics is to understand the game be confident about wining
You must have this mindset of not quitting or give up
You must know when to draw your sword and retreat.