How can I recover my minecraft account with only my minecraft username?

I suppose you are talking about a mojang premium minecraft Account there is an article on the official forums addressing this matter: https://help.mojang.com/customer/portal/articles/329530

Have you tried the MS account recovery tool? https://account.live.com/acsr

When I logged into windows 10 using my Microsoft account it instantly used my Xbox username. It there any way I can make my Minecraft account different than my Xbox username? This would be extremely helpful, especially because my Minecraft username
is 13 letters, and Xbox usernames can only be 12 letters!

Hi there,

I found this article, I hope this helps:

Minecraft Usernames

This article covers Minecraft usernames for Minecraft: Java Edition on PC/Mac. Minecraft on other platforms do not require usernames, but if you play on Minecraft Realms on these platforms you will use your Xbox gamer tag. The console editions of Minecraft
use Xbox gamer tag or Sony PSN ID.



Where can I find my username?

If you have a Mojang account, your username can be found and changed on your Mojang account page.

Can I change my username?

Users who have a Mojang account (the default account type for all accounts registered after November 2012) can change their username for free at account.mojang.com/me by clicking the
(Change) link next to your profile name.

If you sign in with your username, as older accounts do, you'll first need to migrate to a Mojang account before you can change your username.

https://help.minecraft.net/hc/en-us/articles/360034636712-Minecraft-Usernames

Hello, Joseph. I’m afraid to say, but it is not possible to recover an account only with the gamertag.
The only username you can try, is a previously created Skype username.

In this situation, as you said, is more convenient to create a new PSN account, and enable game share on the one that owns Minecraft.

Hi. My name is Brilliant, an independent advisor. I am happy to assist you today.

If you have forgotten the email associated with your Minecraft account, there are several steps you can take to recover it. Here are some options:

1. Try to sign in using your username: If you remember your Minecraft username, you can try signing in using that instead of your email address. If you are able to sign in, you can update your email address in your account settings.

2. Check your email accounts: If you have multiple email accounts, check each one to see if you received an email from Mojang or Microsoft regarding your Minecraft account.

3. Contact Minecraft support: If you are unable to recover your account using the above methods, you can contact Minecraft support for further assistance. They may be able to help you recover your account by verifying your identity.

I hope this helps.