I don't feel like I'm fully in control of myself. When I'm imagining a situation, I can think relatively quickly and can come up with responses but once this situation becomes real, I don't say things to the best of my abilities, and on top of that, if it's something that gets me a bit angry or passionate my body physically reacts in ways that are out of my control, from me stuttering a lot more to retorts disappearing from my mind to even my voice becoming shaky and restricted. How do I stop this?