Weaning off medicine

[Ceford]

About 2 years ago, I stopped having my period for about 6 months.  During that time, I became highly emotional, anxious, and depressed.  My doctor told me that likely I stopped having my period because of stress.  Once I got on birth control, my period became regular.  In addition, I am on 30 mg daily of lexapro for anxiety and depression.  While I am much better than I was 2 years ago, I feel like the lexapro is unnecessary and that the cause of my "emotional imbalance" was the lack of period.  I am highly irrational at times and ultra-sensitive.  The only other time I was like this in my life was when I was on wellbutrin for a period of time.  Thus, I would like to wean of the lexapro.  Would you recommend how to do so?  In addition, the birth control I am on is Yaz.  I wonder also if I should switch the brand.  I've heard from others that it has made them more emotional than ordinary.  Right now, I am in between insurances so I cannot go to a doctor.  Would you please advise me?  Thanks