It may seem weird that I am answering this because I am waaaay behind you but my mom is a complete band success story.
Yes, you will reach a point where you KNOW the band is helping. I truly believe the band is already helping you whether you feel it or not. I am in the same position. My mom has reached her sweet spot and it's 100% the band that is keeping her from eating too much. I bet you start feeling it in this next fill or the next, for sure!! If not keep making your appointments with that new doctor you have in August!! Be done with this jerk!!