I read for myself almost exclusively. I also have social anxiety and came from a very isolated fundamentalist background, so it might due to not having friends who would be comfortable with tarot readings.
Personal bias is definitely limiting when it comes to personal readings, but I've learned to work with myself to see the answers objectively. Sometimes I step back from the spread and try to imagine what advice I would give a stranger who had come to me with the same question. It keeps my mind expansive. The book Tarot 101 by Kim Huggens has plenty of exercises for staying objective.
Sometimes I use tarot to create what Kelly-Ann Maddox calls a "Tarot Story" or "Tarot Mandala" to explain how I feel about a complicated and deep issue in my life. I recently used the Wild Unknown to paint a picture of my toxic relationship with my mother. It brought me to tears and really helped me understand upsetting parts of my upbringing.
I have only been using tarot for about four years. You might want to take my advice with a grain of salt because I'm certainly not an advanced reader.