In order to earn money from your youtube videos you need to have an Adsense account and link your youtube account to that Adsense account.
The money you make from youtube ads will show up in your Adsense account if you make money and then you get paid once you reach the minimum payout through Adsense which is $100.00
You'll need to setup a payment method such as a bank account to get paid the earnings you made through youtube.