This is a good insight to realize and I think one of the first steps to embracing who you are. However this will also mean reducing covert behaviors until you are no longer covert. The first step to changing a behavior is to become really good a recognizing when it's happening and developing that awareness. Many times we know when we are word substituting, but sometimes it can happen naturally as well. I would choose a few situations and pay special attention to all the times you switch words. Once you have a keen awareness, you can begin to try to reduce your switching.