Hello,
Thanks a lot for your email.
From what I understand, you would like to cancel your AdMob account in order to be able to monetize your YouTube videos.
I would like to propose a different solution, one which will allow you to keep your AdMob account. Please upgrade your AdSense account to a full account using a website you have access to. After the upgrade is complete, you can continue using AdMob and use the same account for YouTube, too.
Please let me know in case you have any additional questions.
Sincerely yours,
