create new partition with free space

i have a 4 TB Disk and allocated all to /home lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 4G 0 loop /var/tmp nvme0n1 259:0 0 3.5T 0 disk ??nvme0n1p1 259:7 0 256M 0 part ? ??md0 9:0 0 256M 0 raid1 /boot/efi ??nvme0n1p2 259:8 0 8G 0 part ? ??md1 9:1 0 8G 0 raid1 [SWAP] ??nvme0n1p3 259:9 0 2G 0 part ? ??md2 9:2 0 2G 0 raid1 /boot ??nvme0n1p4 259:10 0 300G 0 part ? ??md3 9:3 0 299.9G 0 raid1 / ??nvme0n1p5 259:11 0 3.2T 0 part ??md4 9:4 0 3.2T 0 raid1 /home nvme1n1 259:1 0 3.5T 0 disk ??nvme1n1p1 259:2 0 256M 0 part ? ??md0 9:0 0 256M 0 raid1 /boot/efi ??nvme1n1p2 259:3 0 8G 0 part ? ??md1 9:1 0 8G 0 raid1 [SWAP] ??nvme1n1p3 259:4 0 2G 0 part ? ??md2 9:2 0 2G 0 raid1 /boot ??nvme1n1p4 259:5 0 300G 0 part ? ??md3 9:3 0 299.9G 0 raid1 / ??nvme1n1p5 259:6 0 3.2T 0 part ??md4 9:4 0 3.2T 0 raid1 /home [root@server ~]# i would like to split the /home and create new partition for local backups. so how to create it without loose existing data on /home