How about have you at any time blamed the one that led you to gambling in your mind, or even told him face to face?
Normal for a kid to do that since we might find someone to blame so that we can escape on the consequences of what we do especially if our parents is strict about on our participation on any risky behavior you do. Also you can't feel any guilty feeling with that since you are not in proper mind to take good decisions while you play. Now since you already realize that you are wrong with that time since you are in charge with decision you do then as grown up man now for sure you learn a valuable lesson from the past and will not blame the current or existing people that might convince you to gamble on a casino.
Nothing wrong to gamble its just we need to set up some good attitude about this since if we don't have plan and let the game flow until you already done then provably this will not give us best result since we already got broke on that conditions.
Use your experience as a kid to learn from your mistake and for sure you became more better gambler with these incident happen to you.