What’s the best way to lose weight if you have GORD/ HH?

i was diagnosed a year ago with GORD (Gastro oesophageal reflux disease) and a hiatus hernia by endoscopy and I'm two stone overweight and I know that it makes my symptoms worse and all the advice tells you to lose weight. I'm on omeprazole 20 mg daily, I had an ulcer in my oesophagus but fortunately that cleared up after a few months of omeprazole

I can't seem to get myself motivated to stay on a weight loss diet - I try for a few days then give it up. Perhaps I’m being perverse? I know I'm making my symptoms worse, not to mention the long term effects on my health and fitness. I'm careful to avoid eating food that i know triggers my GORD but I'm no good with a diet

Can anyone advise me on how to lose some weight and what worked for you with GORD ?

thanks for any advice