Should I open a binance wallet?

I'm very much a newbie to crypto. Any recommendation can be welcome right here. I've lately came upon that crypto is sweet for shifting money around. And that's what I intend to make use of it for. To fund Polymarket and other betting websites. I have opened a binance account but I see there's an choice to have a pockets. Is my money any safer if I exploit the wallet function or it doesn't matter if I've a pockets or not? For now I gained't be trading crypto as I find it too difficult.