You can’t earn money through gambling. Gambling was meant for entertainment purposes and not for profit generator. If you wan to earn then you should focus on investment type such as trading using fist capital.

Or use your skills to earn Bitcoin by offering your skills on services board. It’s either you will work or invest to earn here since the era of faucets and bounties is already which can give you the possibility to earn huge amount by just doing simple task in the forum.