I would urge you to continue to study and learn as much as you can. I do not believe you can be healthy if your gut is not working properly. I do not believe you have to spend a fortune to have a healthy gut. I do believe you should learn how to do a wide variety of lacto fermented foods to populate your gut with good bacteria. If you have an overgrowth of candida, yeasts, fungi, or other nasty stuff, you will probably need to weaken them. Find out what makes bad organisms strong (sugars, simple carbs, processed foods, a pH system out of whack) and what makes good bacteria strong (a neutral pH gut, some good minerals and vitamins, good fats and whole foods, lacto fermented foods). Focus on the healing aspects.
This is just a starting point. There are endless variations on these themes. Learn different foods from different cultures. Incorporate foods your great-grandmother would have made. Learn some forgotten skills. Spend your money on good food, not doctor visits.
The following link is a beautiful page that is well laid out and well thought out on gut health and disease. I think you will find it valuable and non-annoying. It is one of my new favorites.
Finally, I found a great quote from a website on raw milk. It is just so good I wanted to put it into this article on gut health. From the article:
A Word About Diet In General
Use common sense and stick with whole, unprocessed foods, free from genetic tweaking (there's still just too much conflicting information out there on that topic), and you'll likely be ahead of the game.
Cook your foods minimally, and you'll be even better off. Learn about sprouting and fermentation. Question everything before letting it past your lips.
Explore what worked for countless generations before ours, and put it to work for yourself today. You can achieve great health by diet alone. I've done it, and so can you!
Best of Health