It took you a few days to come back with that reply. take a positive and use it as a negative, a commonly used trick in this subject.
If you have additional support needs then a school facility and the teachers should be able to support you in your journey. Sports, arts, social and technical subjects may be your strength but you would only discover that if the full curriculum is open to you.
Imagine what a new school could offer to the full range of abilities.
Any teacher of sort should know better than describe a child as thick.