I use acrylic like you. Have you sealed your PROJECT before you start painting between coats and at the end of your painting process? Have you let the paint dry properly between coats? You also have to work on your strength 💪 maybe you are applying a lot of pressure while painting. But I think it's probably because your layers are thick, my acrylics are thin with water, they almost feel like watercolor, I think your color layers are thick.
