Best Alternatives To Probiotics for Gut Health?

I've been struggling with gut health issues for a really long time now. I'm 41 and i've tried a lot of treatment plans. One of those treatment plans was probiotics and well that was a big mistake as it worsened my conditions. I mean yeah i guess it's expected to experience bloating, gas, and other abdominal discomfort when first taking probiotics, but this kept continuiting. Maybe I just have a sensitive gut? Please help!! I am so incredibly tired of experiencing these GI health problems in my gut. Any alternatives would mean a lot.