I prefer not to use cryptocurrency as a method of payment, after all, the rate is not stable enough and you can lose a lot of money.
there are stable coins here too that you can use if you dont want to regret whatever value may come next but converting your crypto to stable coins feels like similllar to converting your cryptos with fiat .
if thats the case then you should buy locally with fiats or there are also fiat based online shopping that is popular right now for every countries . im also doubting to use my crypto but still ive been using it because i have no cash on my pocket .