DYOR is the first thing anyone should tell you, you're the one who knows the size of your pocket, you're the one who knows your risk appetite, you're the one who knows the size of your income, you're the one who knows everything about yourself.

Talking about crypto, you must understand that there are quite a lot of cryptocurrencies, so which one of them do you want to buy, bitcoin? Altcoins? You can as well buy bitcoins and stocks, you're not going to be looking at your portfolio every minute in the day, so the talk of divided attention does not count.