I will say first avoid physical method, there are many good options you can use to purchase bitcoins , and exchanges are one of these options and one the best too there are various good exchanges at there like binance, Bybit , bitget and KuCoin etc.

Binance is one of the best but is not for all region though when it comes to p2p , so you can still give the others a try All you just have to do is to download the application, and fill in your correct details , the very your account with kyc.