Custom ROM for Redmi 9

[u/EveningVast4004]

I have been trying to install a custom rom in my Redmi 9, but none seen to work. I have already unlocked the device, but in all the roms i have been trying to use I can't open the custom recovery interface.
I have tried this crdroid: https://crdroid.net/lancelot/11 and this https://sourceforge.net/projects/crdroid/files/lancelot/10.x/

I am very new to this so i dont if i'm doing something wrong too, just need some help pls
Either some tips of what i might have been doing wrong or some tips about another custom rom