Any book/website recommendations that provide strategies for defense mechanisms?

Any book/website recommendations that provide strategies for defense mechanisms? **Stuttering and fear:** I think that feelings of fear, anticipation, tension, loss of control and lack of confidence - can lead us to (subconsciously) protect us from saying anticipated or feared words - that we perceive as a threat (mostly protecting us unnecessarily that increases **stuttering**). A sort of defense mechanism. I'd like to ask the stuttering community. **Question**: Do you know any good books (or websites) about strategies to address defense mechanisms in general? https://preview.redd.it/cwj7adg2o3gd1.png?width=1294&format=png&auto=webp&s=e83c482368f9d13c3da3fd8acd1b9697ca0c4754