my account has been stolen

Hello, first of all, I want to clarify that English is not my native language, so if there are writing errors, that's probably why.

Recently, my Microsoft account (which was linked to the email ******@gmail.com) was stolen. Exactly one week ago, I received a notification that information had been added to my account. At the time, I ignored it because I was busy. Two days later, I tried to play Minecraft out of boredom, and I saw that I had been logged out. The email no longer exists for that account, and when I checked on NameMC, the name had changed from spatan89 to Hydranshi, a change I neither authorized nor requested. Then I found that I couldn't access other things related to Microsoft, like Xbox; all the accounts were closed, and when I tried to log in, the email didn't work for any account. Luckily, Windows Hello saved a quick login to the account through my laptop's PIN. I used it, and now the account is linked to ***@outlook.com, with a backup email that is only marked as cr@gmail.com.

In short, my account was stolen and linked to these emails that I don't know. Consequently, I am trying to seek help through Mojang because it was most likely my Minecraft account that was stolen, since, apart from the name change on the Minecraft account and well... the access to any Microsoft service I had, they haven't done anything else. I tried to fill out a form to recover the account (https://account.live.com/acsr), which, to begin with, left me with doubts as to what I should do... should I try to recover my account by putting in the hacker's email? Aside from that, it asked for information that I no longer had or never had. This mainly included the use of platforms like Skype or Xbox (I never had the first one, and the second one referred to consoles, which I never had, and not the platform that can be accessed, which I now can't). It also asked for information about payments, with the only payment being more than 5 years ago, and I no longer have access to that information precisely because of how long it's been. Therefore, the form tells me that they couldn't verify my information and can't help me. It doesn't even allow me to show all the irregularities that appeared out of nowhere.

I no longer know what to do to recover my account. I have tried to get technical support in other ways besides this Q&A section, but I haven't been able to. A week has passed, and I haven't been able to do anything. I would like, at the very least, to block the hacker from my account, even if I can't recover it.

In summary, I can't access my account; it was stolen. There are several irregularities that are also obvious, and every attempt to recover it has been unsuccessful.

(By the way, I don't know if this is the case, but I'm almost certain that even the login locations for the account abruptly changed, even the country).