i suggest you should talk to your chief/senior instructor before doing anything.
from your case, it sounds to me like either your instructors teaching method does not suit your way of learning, or your instructor is being extra 'safe'.
maybe its wise to take a break from circuit lesson, go out to the training area and do couple hours of airwork exercise and try the solo check again in couple of days.
for a new pilot, circuit training can be discouraging as you see all your mates go solo before you do. however its important to keep your head up and remember flying is your dream and you would do everything to make it happen. and don't forget an ice cold beer in the evening will always cool you down after a long and disappoint day of training
