Can't log-in with my original account on feedback.minecraft.net

Hi

I have an account:

https://feedback.minecraft.net/hc/en-us/profiles/375842175231-GodRage-Aonwa

But I couldn't login in with it because of the actual login use only microsoft emails or Github accounts... (I guess it was different few years ago)
So I used this one :

https://feedback.minecraft.net/hc/en-us/profiles/395452131171-G0DR4G

I didn't found any information in the FAQ or anywhere else about how to connect with my previous account. Neither a "Forgot your password" link or a "Trouble connecting? Tell us your username".

If I use my Github account, I get a newer account :

https://feedback.minecraft.net/hc/en-us/profiles/397663896811-godrage-aonwa

I hope I am asking in the right website. I couldn't find any link next to the "Community Contact form"...

 

I just want to use back my first and original account, not the newer ones... If you could please help me, I would be very happy.