I think you need to reduce the inflammation of the gut. It sounds like you are getting worse and not better. A great anti-inflammatory is cod liver oil, and there are natural foods that are anti-inflammatory such as broccoli, fish, pumpkin, and more. The goal of the diet is to reduce inflammation.
There’s tons of leaky gut supplements you can take but haven’t seen your list of these.
Are you taking digestive bitters? Are you eating organic? What about organic meat? What supplements are you taking?