I have been in that situation so I can definitely identify with you.
Sometimes a med needs a certain time period before it starts showing noticeable symptom relief although it is working at some level to provide healing.
Sometimes a med is not at a sufficient therapeutic dosage to be effective or fully effective.
Sometimes after a sufficient trial period a med not working needs to be augmented with another medication or a medication switch needs to take place.
And sometimes psychotherapy is needed to reduce stressors that prevent a med from working properly.
You probably already know all this. Sorry.
I don't know what your situation is so I am in the dark there. But I am so very, very sorry you are not getting good symptom improvement. That can be so demoralizing and draining. Wish I knew what to say to help you!