Sorry for all the pain and discomfirt you've been through in the surgery. But apart from the pouch redo the symptoms you've mentioned are pretty normal for any jpoucher. First few months are very rocky. I couldnt get out of bed for few weeks. Slowly the strength came back and stool was more formed. Its been over 8 mos. now with my takedown and I have like 5-6 bms a day. Some days 2-3 and sometimes 10 times. Doesnt bother me one bit. All GIs would tell you it has nothing to do with food but its always the food for me or the extra stress/ bad sleep that hits my pouch hard. You should try pysillium husk 2tsp morn and 2 tsp evening. Also give intermittent fasting a try. I eat during 10am to 8pm . No food 3-4 hrs before bed.
Also you should stop seeing doctors too often. Things may seem very bad but they arent. Your pouch is pretty new , getting too many scopes done on it can cause further issues. As is the case with colitis there's nothing new that can be found looking into the gut.
Eat plenty of bananas, brown breads , butter, chicken, fish , nut butters. Stay away from too much artificial sugar or sugar alltogether. Do kegels daily it'll help increasing the strength down your bottom and some mild exercising that will get the gut moving and absorption will definitely get better. These things take time so give it that. Overdosing pills can only result in more issue , a thing I learnt from my colitis fiasco.