Stress handle and worring. Pigmentation?

I have been taking treatment for Anxiety, OCD, and GAD for around 8 years. Currently, I am on Bupron XL 150 mg and Dicorate ER 250 mg. Several times, after discussing with my psychiatrist, I tried reducing or stopping medication because I felt better. However, symptoms such as anxiety, excessive worrying, irritability, anger outbursts, overthinking, and difficulty handling stress returned, especially during work pressure or personal challenges. I often worry about the future, family responsibilities, career, and past mistakes. This makes me feel as if I have become dependent on medication, and I sometimes feel trapped. My questions are: Is long-term medication common in Anxiety/OCD/GAD? How do doctors differentiate between medication dependence and symptom relapse? Is it possible to safely taper off these medicines in the future? Can Bupron XL or Dicorate ER cause hair loss, hair thinning, dark spots, or pigmentation? Would appreciate guidance from psychiatrists and others with