i have this disk …

Disk /dev/vda: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: C674D881-7805-4A46-AA73-F49328BBC7BD

Device       Start       End   Sectors  Size Type
/dev/vda1     2048   1230847   1228800  600M EFI System
/dev/vda2  1230848   3327999   2097152    1G Linux filesystem
/dev/vda3  3328000 134215679 130887680 62.4G Linux LVM

and more specific

NAME      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sr0        11:0    1 1024M  0 rom  
vda       252:0    0  100G  0 disk 
vda1      252:1    0  600M  0 part /boot/efi
vda2      252:2    0    1G  0 part /boot
vda3      252:3    0 62.4G  0 part 
rhel-root 253:0    0 39.3G  0 lvm  /
rhel-swap 253:1    0  3.9G  0 lvm  [SWAP]
rhel-home 253:2    0 19.2G  0 lvm  /home

I want to reduce and adjust the environment, how the memory is organized and remove the uncessesary space

i tried to reduce the size by creaing logical volume…

sudo lvcreate -L 20G -n new_root rhel