Welcome to Wrong Planet.
You wrote: I also have been finding professional behavior and dress codes very difficult.
Early in my life, I had a problem with what I wore. This issue became more visible when I moved off and began living on my own. You see I am color blind. I see colors but they are just not the same colors that everyone else sees. If you think of an early color television that uses Red, Green, Blue to create all the colors of the rainbow. And you think of the human eye working the same way. My mind only picks up two of the colors and creates in its imagination the third color. As a result, I wore clothes that suited me, but when other people looked at me, THEY FAINTED.
If you have a similar problem, then find a normal person to select your clothing for you. I am sure that there are many that will help.