i feel this a lot its actually one of my biggest insecurities ill have an idea in my head that seems super clear and if i try to say it to someone out loud for the first time it just never really makes sense i often have to restart what im saying and thank god that the people around me are patient i also have this problen when writting but its definetely not as bad cause at least i can reread and correct things when i want i will always just think of what i want to say or write  before hand to make sure that everything makes sense ill even do this for just a simple phone call if i dont prepare myself or someone asks me something i wasnt expecting i freeze and dont know what to say which is so bad for job interviews oh my god idk if this is adhd anxiety or what but its definitely something ill need to figure out