Yeah this game has been much more problematic for me than sun and moon, but I'm not sure if it is my team choice or actual higher level trainers. I've been stuck forever on totem araquanid though because it absorbs everything, heals, and takes out everything in 1 or 2 uses of bubble. There are no trainers left to fight and most of my team is still underlevelled. Might have to grind out a few levels.