I think gambling does not suit him and he should only focus on gambling.
Lmao! This typo made me laugh.
Coins trading and price fluctuations is a separate things and gamblers should not worry much about the price of the coin, they should only be worried that they should make profits from gambling.
It makes sense why gamblers worry about these price fluctuations to be honest, but they should stick to stablecoins like USDT etc if they wish to avoid this additional cause of worry as you mentioned.