Nice to hear that you life is back on tract and you are ready to stop the antidepressant medication .Only problem with this approach is the rebound anxiety
and severe mood fluctuations ,which can happen when these anti depressants are stopped in one go ,especially after taking them for a long period of time.
Some times these side effects can be severe enough to cause major disturbances.
I will advise you to talk to your doctor and try to reduce the dose in graded way ,rather than abruptly stopping the medication, 150 mg dose probably need few months to be tapered off completely without compromising the quality of life.
Hope it helps.