Yes it wont really be that easy.My suggestion? Put up a faucet then next,focus on marketing stuffs to increase exposure.
We got a faucet running on the website. You find it when you click on your balance.
Maybe integrate lightning network also for the deposit and withdrawal so small timers can play on your site. At least such payment method will only have a very small fee for transaction charges. It might help you in gaining players.
Also, if you can afford in the future, maybe run a promotional campaign like signature campaign here in the forum or other social media campaigns that will expose your gambling site to the public.