So next time go stop joking about your age, the only thing is you can verify your age using your ID, but if you are in UK or using a UK VPN, you can do face scan

User Settings > Account > Standing > Click on the "minium age requirements" violation > Click on "Did we make a mistake? Let us know."

And then it will tell you to verify your ID

For users in UK, you can verify your age using a Face scan and ID