Reddit reviews Own the Room: Discover Your Signature Voice to Master Your Leadership Presence

I think we need some more context or specific examples of what's happening. When you say you can come across as trashy, what exactly do you mean?

For what it's worth, it seems to me like you're acting your age and trying to stay within your bounds. He may be expecting too much or not conveying his expectations properly if this is becoming an issue. You're 19 and self-admittedly lacking in social skills. I assume you've made these concerns apparent to him. If not, you really should--ask how he would approach situations that you feel as though you fail in.

I'm a very quiet person myself and I know how hard it can be to assert yourself in certain situations, especially among those you consider to be of "higher circles" than you. And I also know it's incredibly difficult when you feel you've made a mistake and look back on it afterwards. There are some books that may or may not help, I certainly found them helpful...look into How to Win Friends & Influence People and Own The Room.