Of course you are correct because that has been one of the factors that has been luring many people by joining gambling on a daily basis because there mindset is that gambling is the easiest way of making money without knowing that gambling doesn't work that way, but however gambling is like the more you feel you can win that's the more you are losing.
Because just like what happened to someone last week on a betting shop, he saw a game that he believes is going to play and he was so confident that is going to win, so he put all his money on that single bet with the intention of wining big but little did he no that he was making a terrible mistake by putting all his money on a bet, so however at last he lose the bet and became very upset considering how he just lost all his money because of greed.
It's really a tricky situation if you will be so confident. Although it's not bad to be confident, but we should always take into consideration different things such as analyzing the situation and the risks that come with betting all in. Once you bet all-in, you should be aware that you can either profit big time or lose big time. You shouldn't be complacent and nonchalant especially if you know that you can't really afford to lose money that big. Impulsiveness is one of the recipes of disaster.
Instead being so proud, try to humble yourself and think about all the possibilities. Weigh the pros and the cons first before making a decision and executing it so you won't have regrets.