I'm confused as to why the doctor thinks I'm mentally ill. What do you think, my doctor changed my diagnosis frequently?(details inside)

I was told that I was decompensating, when I was being given permission to slowly go off medication… I had religious visions and I had a need to leave the town for a week. When I came back I was committed for 5 months put on medication that I was trying to get off and I was given a reference to live in a boarding house. For those who know me, can you provide insight for me. right now I am O.k. during the day and I have distress/anxiety at night. Right know I Fluther and Answerbag and watch YouTube and TV and they bring me joy contributing to Fluther and Answerbag. I am looking into taking Religion and Philosophy and seeing if I can find joy in learning about the weird and wonderful.