Yeap vowels and hard start sounds alike K D T type sounds are hard for. I know I really love my wife when I willing to try to order aioli sauce for her haha. There is a technique of adding a very subtle H sound under your breath before a word to get the air flowing. Like saying "hhhhhhok hhhheverybody" But for me having to focus on doing that makes me more self aware and makes me stutter more. The best thing for me is just self acceptance and general anxiety reduction. I