Hey I can relate to you as for many years I had a problem with assertiveness! I can also emphasize your point about reflection, but I would like to also add maybe you can get reviews from others about how you communicate and how you come across. Sometimes we are our own worst critic, and we don't realize if we are doing something right/wrong! I believe communication is very important in this day in age with smart phones and social media. I walk around everywhere and most people's heads are looking straight down at their phones. If you master the art of communication while everybody is below average these days, you will really stand out! :)