I have a problem with assertiveness.
I have usually a lot of anger inside, and I am aware of it.
But in 80% I suppress it for not being ill-mannered or have issues with others, but that's leads me sometimes to some anxiety/depression and somatization disorders.
But I have a 20% that I have great outburst with verbally aggression, usually when strongly provoked/invaded in my personal/family matters or when I feel exploited/disrespected by others.
So, anyone has problems with assertiveness?
How could I learn to be more assertive and stop switching continuously from passivity and aggressiveness?