Can't seem to stop eating Gluten

I was diagnosed about two years also. I went to Brazil last fall and
decided to not worry about my diet in spite of the pain and discomfort
of eating gluten. Since this experience I haven't been able to stick
to my diet and I have continued to cheat.

I have weeks where I do really good but if I eat sugar or processed
food this makes me lose control of my diet and I start craving food
containing gluten. I feel really horrible for several days after
eating it. I get weak, have pain, digestion problems but these
challenges haven't been a big deterrent to make me stop.

I feel like an alcoholic who started drinking again. I didn't cheat
for an entire year before this trip. Has anyone else experienced this?
What did you do?