Change Minecraft email but I need to insure my account?

I play Minecraft on the laptop. And I want to change my email there to Mojang since I have a new one and no longer have the old one. Now it says "you have to insure your account" so if I click on it and confirm it, an email will be sent to my old email, but as I said, I no longer have it. So I want to change my email so that I can insure my account. It should be sent to my new email so that I can confirm it there. But they send it to my old email that I no longer have. I can't change my email address because I have to insure my account first and the confirmation to insure my account will be sent to my old email, which I no longer have and therefore I will not reply to the email I can't see her because she's on my old email address that I can't enter.

What shall I do now?

Why the hell don't you have the old email anymore? 😅

You won't be able to do much without them… Because Mojang has done this so that hackers who know your Mojang Pw can't take your account away…

I just get in touch with my Mojang Support ^^