On what subject(s) are you an authority?

At first I was like I really can’t think of anything, but in reality that’s not completely true. I could talk a lot about dental insurance from the aspect of working within a dental office. I can talk about my own healing journey from growing up with alcoholic parents as well. I also could discuss relationship advice, but again based on my own relationship/marriage with my husband. I guess I still wouldn’t say I’m an authority on any of these subjects though because it’s all based on my own experience, rather than hard facts and research.