You're going to hate me for this answer, but everyone is different. Generally speaking, your pouch is still very new. Keep in mind that our bodies weren't designed to work in this way, and your new system will need time to adapt. I have had my pouch for 7 years and in the beginning it was awful. Now I go about 8 times a day (night included), though you can try to adjust your diet to see if certain foods and behaviors help. You can also check with your doctor about using immodium or lomotil to help slow things down; my guess is that they will want you to wait a bit longer before trying those. Personally, Metamucil and bananas helped me slow things down a bit, and avoiding eating after 6pm got me through most of the night without having to get up.
Be patient with yourself and your new pouch - it will improve as the months progress.

I was still going about 15-17 times a day at that point. It really is difficult.
Katie