If a gambler is afraid of losing money, then he will have a mindset of trying to recover his losses, so he will keep on depositing and find a way to recover those losses. its a risky mindset, not accepting the fact you can lose money, which is why there is a proven saying that we should only play with money that we can afford to lose.
If you're not comfortable with losing, then don't play and just keep your money, but you will not feel the excitement of playing.