Help with Kratom,

Hello Joey , I started using Kratom almost 2 years ago , I was looking to get away from other substances I no longer wanted to use that didn’t serve me anymore , ei alcohol, marijuana . Someone put me onto kratom and at first I barely noticed anything , after finding my , -sweet spot I was very pleased with how it alleviated my symtoms of depression and anxiety , brain fog and intrusive thoughts. I thought wow! This is how I feel I’ve always wanted to feel!! I feel “ normal” my sense of well being that I had never felt before. It almost seemed to good to be true . I’ve been ordering from a company called canadakratomstore. I haven’t really tried any other sources . How do I know what I’m taking is actually Kratom? Is there a way to test the purity? I feel kindof stupid not thinking of this before . There seems to be more and more concerning testimonials of people having “scary “ experiences with Kratom and getting off it, my last break lasted almost 7 days, I started again really small but now I’m very quickly creeping back up to where I was before using it daily , I try not to go over 10 grams in two doses. I really don’t like how I feel without it and I’m concerned