You really don’t need to do things like this. This is more of an issue about us not willing or u sure how to express ourselves with what WE want - and not other people. We hold ourselves back so much and just because our speech is the most visible or audible “problem” we feel it’s a speech issue. It isn’t. But we need to learn how to express ourselves. To be congruent. Join speakers clubs. Try stuff in there. Experiment. Antipsychotics - may help in ways but if they don’t get you in touch with how you feel inc comparison to others is probably pointless.