Oh, how do you think recording yourself will help? Instead of coming up with some other new ways to improve, you could try what I suggested. It gets to the root cause, and is the recommended methods of SLP‘s who specialize in dysfluency. Anything that encotesges avoidance will help briefly, but will ultimately make the issues worse. Obviously do whatever you want, but if you want to speak confidently, to anyone, anywhere, without substances, disclosing, in some way, is really the only way. And speaking smoothly, and interestingly is definitely possible