If you dropped from 75mg to 37.5mg, then that was a 50% drop, while the Maudsley Deprescribing Guidelines recommends no more than a 10% drop over however much time it takes you to feel normal again before the next decrease of 10% of the balance. You may be one of those (like me) who suffers from a prolonged/protracted withdrawal syndrome: I had decreased the drug on my own to nothing, then suffered an onslaught of tremendously debilitating withdrawal symptoms about two months after feeling fine. Through online research, I learned what I did wrong and I will be doing it right the next time.
My best tool against anxiety is exercise, exercise, exercise. Good luck.