You aren't alone! I was sleeved on 10/16 and at my one month post-op visit i told my doctor i wish i could have been sedated the first week after surgery!!
It is really tough. I drank 0 protein shakes but i used Isopure flavorless protein powder in my drinks and soup. Everything had to be at room temperature. My stomach hurt. It does get better. By the third week it's like someone flipped a switch and I had my energy back, soreness was gone, and i was 20lbs down.
Goodluck!