Are you unhappy with the school itself (friendliness of staff, condition of aircraft, availability, type of airfield, cost etc), or just with this one instructor. If it’s just the instructor and you’re happy with everything else then the best thing might be to actually put the points you have made in your post on pprune to your instructor, and see what they say, and if that doesn’t work to the CFI, or just book with another instructor, unless there’s only one they can’t force you to fly with the same person all the time.
It doesn’t matter if the instructor is young, old, experienced or inexperienced, sometimes students need a change. If I had a student who wasn’t happy with what I was doing I’d far rather they told me about it, rather than posting on an anonymous Internet forum then changing flying schools. Never forget that you are a customer, and deserve some respect as such.