Hopefully your doctor is giving you the standard advice. The advice I received (from the doctor and from other knowledgeable sources).
- cut down on coffee and alcohol (which I have not been doing, fwiw).
- cut down on spicy food (which I have been mostly doing) and avoid a list of known triggers such as mint.
- slant your bed. For me sleeping at an angle (feet lower than head) really helps. I started with a foam wedge which didn't work too well because I would slip off it when I slept. I bought a metal lifter that goes under the box spring. That works very well for me.
- avoid wearing clothing that is tight around your waist (which I do).
- avoid eating less than 5 hours before bedtime.
Slanting my bed helps me a great deal. I am supposed to be taking PPI inhibitors, when I watch my diet I have found I don't need them as much. I don't always do a good job watching my diet.
And every two years I have an endoscopy to screen for esophageal cancer. This is god-awful, but the doctor thinks it is important since he found a condition called Barrett's esophagus.