If you haven't read this, do so. It will help immensely.
About the foods you can't eat now ---- you will probably get them back later. But often, very often, & it's actually a wise thing to do --- is to limit your diet & add one food back per week & see how you do with it --- if it's a no go then quit it & try it again 6 months down the line. Keep a food log too --- makes it easier to figure out problem foods or figure out cross contamination or glutening. Your gut is a wreck right now so it's not accepting some things. As it heals you will be able to eat more things. The first 6 months can tend to be whacky too. Good days & bad days so expect to have sort of relapses. I would also leave off the corn for a good long while. Corn is hard even on normal ppl so it's not surprising you're having problems with it. Instead of peanut butter you might try cashew butter or sunflower seed butter OR Nutella which is hazelnut, cocoa & milk & sugars of course.
BTW, you can call me Squirmy --- everybody does. Too long to type the whole moniker.