firstly,
gambling is like a spirit, once you're possessed, you'll love to win to satisfy yourself. Even when you're loosing, you're propelled to try more with each new guess looking real and with high possibility of giving you a win. This is when you are most vulnerable and can either make or mare yourself.

Here are my candid advices based on my experience

• there is time for everything and gambling should be apportioned its own time and season in your activities and you must stick to that
• Only gamble with your spare money and not your livelihood
• Do not be too greedy, stake only what you can afford to loose
• Learn to accept that gambling is about luck and experience, there are some good days which you win as well as some bad days. Identify the two and make a move earlier before its too late
• don't bring much emotions into gambling, Instead  bring in more discipline
• don't hope on gambling, see it as a fun activity, just like when you go to the park for recreation and relaxation
• if you bet online, have a separate account or wallet that you fund anytime you're in the mood for gambling and discipline yourself not to add more funds or coinsBTC to that wallet when it is exhausted
  • Also maintain a minimum balance on that account. In essence you will withdraw excesses to your main account in the event that it is a good day and you are getting wins
   

you can gamble and still be modest. the main problem is that people tend to see it as a major means of livelihood especially if their luck shines a few times. this has to be discouraged cos you're on your way to becoming a helpless addict and the doomsday may be near.