Bests & Worsts Reviews from Amazon

I love the color of this mat but despite having it for 11 months and using it 1-2 times a week, I am still slipping all over the place during my practice. I tried the salt, I tried vinegar, but nothing helps. The tiny slips are injury-inducing and keep me feeling a low-grade amount of anxiety while I try to ease into my zen place. I am frustrated because the price of this mat was steep and the other reviews I read were so positive. I kept thinking that it would get better with time but it hasn't.