user on macbook won't load

sorry if this has been asked before but i'm currently trying to log into a user on macbook that has stopped working, as after filling out the password the actual account won't ever load. i found some post from 2019 that says to log in through an alternative account and move the things from the library of the main user to the alternative one, however when i log into guest i can access the other account but not the library, just to change the password. what do i do in this situation?

the mac model is macbook air m1 2020 version 12.4

thank you in advance for any help!!