It is possible to add the two partitions at this stage.
Make space for the new partitions.
Create the swap partition in PCC - Local Disks format it etc and it will be written into the fstab file and thus will be available on subsequent boots.
I would then use a live CD to create/format/etc what will become your /home partition.
While running live I would copy the contents of the existing home on the installed OS to the new partition ...... using rsync for security as it checks each file as it is copied so there is no corruption.
Next, edit the fstab file of the installed OS, to create or replace an entry for /home to point to the new partition.
When you reboot into the installed OS you should be using your new /home partition and have swap available.
[Hopefully I did not miss anything but sharp eyes will no doubt spot it if I did
Personally I see no real reason to do this, but others of course will have different opinions.
Without changing any partitions you could create a swap file
on the existing partition and have your OS use that when it is needed.
Backup your /home on a regular basis, using something like rysnc or one of its GUI front ends. That can be stored on a spare disk somewhere in case it is needed.