So sorry you are suffering with Acid burning in your esophagus at its worst.
When I was at my worst constant , intense, burning esophagus burning symptoms before my TIF surgery,I was on 40mg of Prilosec twice a day. Zantac 300mg at night. The big difference at that time is when I added Aloe Vera juice 2 oz in am and 2 oz in Pm. Also what CPA Kim suggested not eating anything 4 hours before you lie down to sleep at night should help. I also included a small side dish of yogurt and apple sauce as side dishes with my meals so I could slide down my main meal easier. At work, I would pack 2 apples ,peal them and eat them. Apples are a GERDIE TROOPER friendly food.
I am not a diabetic, so I could take TBSP of Honey instead of mylanta ( white liquid anti acid) to relieve in between burning. After a week Of my adding Aloe Vera juice, I was able to cut back to Prilosec 20mg once a day in the morning and Zantac 150 mg at night. When I traveled a long trip in the car, I would take a honey bear in the drink car slot by me and take a gulp if my symptoms increased. I have found after eating a big or small meal it is best to walk for about
15 minutes around your house before sitting down. That will help too.
Best Wishes I hope you can feel better soon.