I am in the pharmaceutical field, but I am not in any position to diagnose, so don't take this advice this way. I don't want to say brands on purpose. I personally had problems with the one you are taking and another one with a similar action. Those are selective serotonin reuptake inhibitors. They weren't correct for me and the one you are taking gave me gastro problems.
The one I take is a combined selective serotonin reuptake inhibitor and a norepinephrine reuptake inhibitor with extended release.
With all of these, it's incredibly important to take them every day, and most helpful to take them at the same time every day. If you skip doses, it can be worse than not taking them at all. Please set a timer.
When you take them regularly, you feel like you don't need them anymore and you may skip. And then you skip another. Skip about 3 and you feel desperate. And truly, the problems you have, though they are real, are really enhanced by skipping your meds.
If you keep taking these meds on time every day for a month or more, and you still feel as bad as you do, you need new meds. Insist.
sg Love is PATIENT, love is KIND, LOVE never fails / DB since 2001