Being at a young age gives you the best possible chance of reversing your condition. Maybe start with your diet by eating organic foods if you can afford it along with the all the supplements mentioned on these threads.

alcohol is a major trigger, I get shooting pains from just one mouthful of beer instantly although they decrease and disappear after the 50th

I take 2000mg of b12Methylcobalamin daily and it helps immensely with the burning. If i stop for a few weeks the burning becomes much worse