hiiii dear
the medicines that have been given to you is good for both 
anxiety and sleep problems
if u have good response than no need to change
here u did not mentioned about duration and response
if u feel better than plz continue to take it
apart from medicines certain change in life style also useful to cop up with anxiety
like
main thing to be strong and confident
start thinking positively
motivating yourself
make friends who keep motivating you
regular meditations and yoga
exercise
healthy diet and green vegetables
proper sleep is essential
 enjoy hobbies,, music laughing therapy
do pleasurable activities
be positive and positive outlook to outer world 
get well soon
thank you