Hi..I advise you not to taper the doses.ifvypur symptoms are persisting then you definitely need medications for few more months.
Decreasing and stopping meds will do more harm than good.
Also if you are comfortable with only a mild dose (12.5mg) paroxetine,and there are no s/e,there should be no problem in continuing the tablet.
Next Steps
please consult your psychiatrist.
do not alter medications on your own without your psychiatrist's advise.
Health Tips
you can consult me online for further help