I don't know about my LES or how my Barrett's Esophagus is doing. I know I had anemia so bad that I couldn't walk a city block and that iron supplementation was ineffective because I wasn't absorbing any. I had to have iron transfusions (2 were sufficient rather than usual course of 4). My blood is back to normal and I can't tell you how well my digestion is doing but it is long, many part slog. You have to also improve your gut barrier: zinc carnoseine; bone broths. You have to improve your gut microbiome: Yogurt, Kefir, Kimchi, Bio Gaia Gastrus for Optimal Gut Health (two strains of lactobacillus which studies have shown to improve things. For Goodness Sake no added sugars or artificial sweeteners. Cut out all alcohol until you are better and then very moderately. Eat earlier in the day and then STOP. At least 4-5 hours before bedtime.
I now not only can eat things like jalapeños but crave them.
I am healthier in everyday than I have been in decades and have lost and kept off 40 pounds...slowly by eating during a much smaller time window each day. But eating to satiation, with a lot of nutritive variety per meal. Start the day with protein. It will keep you fuller and far less hungry for the next meal.

Good luck. Let me how it goes. If you are on PPIs wean yourself off slowly or there will be hell to pay. all those desperately created acid pumps that keep trying to make enough acid for your digestion and failing will spring into action ALL AT ONCE.

I'm not sure about the functionality of my lower esophageal sphincter per se, just know from tests that I have esophagus motility issues.