Might your need to learn how to avoid being submissive be met by this
management training course called Skills with People?
Yes if you want be able to
- be more assertive - but without being aggressive,
- find the words that without getting you a reputation for being difficult will help you stop saying yes when you really want to say no,
- stand up for what you think or want in a way that people will take seriously,
- stand up to difficult people while treating them with respect,
- disagree in a way that is firm but won't get you a reputation for being difficult.