Are these two sentences good:
The hall of mirrors gave me a confound feeling.
Confound- to throw into confusion or perplexity
I told my mom that i was going to the movies but, she gave me one circumstance and that was to call her when i get there.
Circumstance-a condition, fact or accompanying, conditioning or determining another
No, you really haven't grasped the meanings of these words.
You've used "confound" as an adjective, but the definition is for a noun.
These sites will give you some ideas.
http://dictionary.reference.com/browse/confound
http://dictionary.reference.com/browse/circumstance
Note that both dictionary entries give examples of how the word is used in sentences.