Your yucca wants to feel the breeze and get some air on those roots, give it a well draining mix. I don’t typically repot my new plants when I get them but for my rescue plants, I usually do because they typically are suffering from root issues. In this case, repotting had to wait until I got back so this is what I did in the meantime. If you’re struggling with yours, ensure you’re letting the soil dry out in between waterings as well. Yucca plants wants bright to bright indirect light.