What do you think I should do?

I've tried everything to kill my Candida, but it just never completely goes away. I've been fighting it for 3 years and have spent hundreds of dollars. I've tried the following:

1.) Undecylenic acid
2.) Oregano oil 75-85% Carvacrol
3.) Olive leaf extract 20% Oleurpein
4.) Caprylic Acid
5.) Probiotics
6.) Black-Walnut complex
7.) Turmeric

A few of these supplements worked great at first. I could tell because patches of oral thrush would begin to disappear, but as I continued to take it, the patches would fill up again and all my symptoms would come back. I've also tried rotating supplements (every 3 days) but it was the same result. I'm thinking about trying 15 days of Fluconazole and Metronidazole + Probiotics to clear out my intestinal tract.

Here are my symptoms:

1.) Chronic Constipation (hard pellet stools)
2.) Constantly bloated, even when I wake up, but not it's not as bad as post meal.
3.) Oral thrush and BAD breath.
4.) Brain fog.
5.) Social Anxiety Disorder.
6.) I can't concentrate very well.
7.) I'm severely underweight.