Just like you said when you Fear of losing money to gambling then the best idea is to not gamble at all i mean seriously if you try gamble at first time and then you win lot of money it can lead into addiction if you can control it. and could be worsened if you addiction is fuel your mind.
I have a cousin that really addicted to gamble and he just divorced because of it, he taking loan to his father in law and other person till hit couple of million IDR and cant make it back.
If you do gamble for fun and don't care if you losing the money then go ahead
Gambling addiction has lead to several divorces in marriages around the world, in 2018 or so, my friend who was addicted to gambling got divorced by his wife and she got their only child and went away to where no body knows till today.
Addiction to gambling is one of the most destroyer of homes and marriage and I hope gamblers realize this and always put themselves under control when ever they gamble.
And speaking of fear, it is commonly said that what ever we fear the most has a way of finding itself into our life, this is particular why I think it's better for someone who is afraid of losing money to gambling, to stay off gambling, because their fear only increases their chances of losing.