I can only stand up for myself when I know for sure what I'm talking about and that I'm dead on accurate. If I'm not wholly convinced that I'm right, I lack confidence and can't argue the point. People always demand proof of my statements and I had better have that proof or shut up about it.
It takes a long time to become convinced beyond a shadow of a doubt that everything I was taught my whole life from birth was wrong. I know it's wrong. Now, I have to find out why it's wrong. Next is really believing that it is wrong based on facts.
It's a long process and takes time. That is why so many of us stay in the closet. It is only one reason, though.
Oh, and although I have a college degree, I don't feel better than anyone else. Shame on those who do.