Help: sh: can't access tty, job control turned off

When I reboot it tells me there are too many blocks in the superblock or whatever

So I think I didn’t allocate enough space to the filesystem (mmcblk0p5) , but IDK how to access the partitions from the emergency shell it puts me in

fdisk and cfdisk don’t work

Can you remember the exact error message? If you take a photo and upload it to an image sharing site you can post the link here so we can see it.

You can use the live ISO image instead (replace X & Y with the drive letter and root partition number):

mount /dev/sdXY /mnt
arch-chroot /mnt

Why not? What happens when you try to use them?