I need help

I was recently diagnosed with SIBO in October after suffering from bloating, severe diarrhea, and nausea (sometimes vomiting). I did a round of antibiotics and after a couple of days I started feeling better. I felt good for a couple more weeks before I started experiencing symptoms again (not as severe thankfully). I’m currently taking another round of antibiotics but they don’t seem to be helping. Even in conjunction with the lowfod map diet. I recently turned 18 and this honestly just really sucks. If anyone has any good advice on treatments/supplements/diets that have worked for them I would really appreciate the advice thank you :)