Can you give a short tutorial how to flash twrp from twrp
Put newer TWRP version on sd card, although it can be flashed from internal storage as well.
Make sure it's zip or img format.
tar is only for Odin flash.
Up to a certain version only zip can be flashed so you need zips until you reached a version which can flash img as well.
You can differenciate them by missing "Install image" option.
In TWRP itself choose "Install" select the appropriate storage and file and select "recovery" as place to install to.
After successfully flashing go to "reboot" and select "recovery".
I assume you only need two flashes if you have the luck finding a img flashing capable TWRP with your first flash.
If not just carry on flashing until you've reached that version.