Most Bitcoin exchanges are country-specific, but there is almost certainly one for you. In Canada, we have QuadrigaCX. Thus, the majority of people who start with Bitcoin in Canada will create a portfolio on an exchange and will buy from there. It’s a very simple way to start. All you have to do is create an account and log in. Then you just enter the amount of bitcoins you want to buy. Once you have coins, you must always send them to a portfolio you control, ideally linked to a full node you trust. Remember that the exchange acts as an intermediary. Not your keys, not your coins.