I've been told the same thing by my GI. Although I have burning most days she told me that they won't do another scope because my first scope showed ok. Hard to believe because sometime the pain is bad. My GI also told me that they will only do surgery on people who have severe problems with acid coming into their mouths....so like you I am not a candidate for surgery.
I try and do my best....some days are ok....some suck...but that seems to be the nature of gerd.
Anyway, just thought I'd add my little bit...hang in there.....you are in good company!!