15-Yo trying to cancle accedental subscription

Im a 15 year old who bought the FREE-TRIAL for fun because i saw you could do fun things with the AI to have fun with friends. After I used it I forgott to cancle the subscription. Since I didnt cancle it the subscription was ongoing until I cancled it. I was outside with friends after School and wanted to buy something at the Bakery and realized i didnt even have money in my Account. I realized it was Adobe and since i had to still pay more i couldnt cancle it unless i payed 9 euros. Im not wealthy and i get 20 euros pocket money i didnt want to spend all of my Pocket money for an App that i used once. So i just shut off online payments. Its been 4 or 3 months so i still have to pay either 20 or 30 euros eventhough i didnt use it. As i said i only get 20 euros pocket money so im Asking very politely if my Subscription can get cancled without me having to pay the fee Please. And could you make it a feature that if you get an subscription or a free one and cant pay the subscription and theres no money in the acc that the subscription maybe gets cancled until you activate it so it doesnt happen to other people Please. If proof is needed that im really that Old i can show the proof for Admins. Im sorry i speak 6 Languages i may have many misspelings but i tried my best to type it as politely and good as i could. THANK YOU INFRONT!!!