You are clearly not old enough to be trusted with a credit card... your father is now going to have to pay because you agreed to a contract
For anyone else reading this
Please read everything so you know what you are doing BEFORE you buy a subscription... the link below has the information you need
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If you buy a HIGHER COST Monthly subscription you may cancel at any time without a fee... when you buy an Annual subscription with Monthly payments, and you do not cancel in NO MORE than 14 days from the start of your subscription, you pay 1/2 of the remaining time if you cancel early... you also need to keep track of your annual renewal date, so you may cancel after your 12th payment, before your subscription renews and you start a new one year subscription
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https://community.adobe.com/t5/account-payment-plan-discussions/cancellation-charges-surely-this-isn-t-legal/td-p/14848739