My mistakes weren't costly, but they taught me a lot, especially about separating gambling money from personal expenses. I made a few mistakes like that and ended up having to borrow money to pay my bills. Psychologically, I wasn't affected, but it was something I decided never to go through again.
Learning from your mistakes is a good thing, and you're lucky that you managed to do that instead of getting lost after losing your expense money at gambling, because so many people lose control at some point when they make such mistakes, and the second thing they know is they've taken and spent so many loans on gambling only to recover what they had lost initially, which doesn't make any sense but only for someone who understands and not someone who barely remembers how much they've lost so far because they are too deep into it.
It's probably not wise for someone to use money for gambling from the budget they've alloted for their monthly expenses, because gambling is something where anything can happen, we may enjoy it if we manage to win something and now have more money in our budget, but it won't be a pleasing experience if you lose everything, or at least a good portion of it, just like you, and then looking for people you can borrow some money from. Some people won't even get any money from others, and then they actually suffer for the whole month.