Welcome to the JPouch club.
For tips, take it slow and easy. You just had major surgery and as was explained to me, it's like a boxer went a few rounds on your insides.
Do you have a loop-ileo or did they complete everything in 2 steps? I had 3 surgeries (colectomy, Jpouch, and then takedown).
If you have a loop-ileo, the output from that will be more liquid than your end-ileo.
If you went straight to a functional J-pouch, butt burn/itch may be in your near future.
The first output I had from my JPouch was like crapping razor blades and wiping with diesel fuel. You will want to have a sitz bath to help calm down your new bumm and the calmoseptine (ad on the right) is very helpful as you adjust.