Whether you bet big or small, all that matters is for you to continue to bet and either enjoy the fun or try your luck consistently. This is the real gist of the context. What could do this for us is regular money making, if we have a regular source of income or sources of it, I think that this will be possible easily regardless of whether you are rich or poor.
I won't advice betting big as it can make you to lose money more quickly and when you start losing money, you'll begin to chase after your losses and this will make you to keep losing more money. Having a steady income will reduce your chances of getting addicted to gambling as it won't make you desperate and to be gambling every time as you depend on gambling to make money to use. Steady income makes you become more confident too when you're gambling.
When you don't have pressure on yourself to win the bets that you're playing, you give yourself more chances to play the game with confidence and this can make you to win. You won't be chasing after loses as you can feed and do other things with the money you'll be getting from your steady income. Gambling will be done mostly for entertainment when you have a steady income as you won't be chasing money.