hi wally,
to summarize there are few steps that you need to take :
1: create roadblocks: you need to make it almost impossible for you to gamble, as you said now you still feeling the pain from the last gamble and after few days your mind will convince you that you can win and the cycle will continue…
so what you need to do is now at this state of mind think about how to make it impossible for you to gamble. willpower alone will not work so you need external factors that will prevent you from gambling.
for instance, you can ban yourself in the casinos that are near you, don’t keep cash with you, give the financial control to your partner or family member. the money is the drug here if there is money the gambling urges will start. install web blockers on your devices to prevent you from accessing gambling sites.
2: you need a safety net, if you relapsed you should not lose everything you have, if you have savings give the control to a family member. don’t take any loans, close the credit cards, you need to reduce the access to money.
there is a lot to be said but as a start, if you prevent access to the money you will solve 80% of the problem.
hope you all the best.