Anony, I use to feel that rage in my 20s. It turned out I had no other way to feel "powerful" because I felt pretty powerless in general. No one paid attention to me. Over the years I began to see how much control I had over what I felt was extremely intense rage/anger and even took some pride in my control.

Gradually I began to see/believe what the T's were all telling me that that "depth"/intensity meant I had the "opposite" abilities too; as sad as one is one can feel that happy, etc. It's a range thing and you're seeing the range of your anger versus your patience and ability to "wait" and/or contain intense emotions. You know in your heart you'd never hurt your family and then turn around and are glad you all get along so well (fearing what you know might not be true).

Trust your heart; feel the personal power, your energy and power, your control, when you exhibit it; when you leave the room instead of exploding (I never did smash my fist down my stepmother's throat :-) and see if there's somewhere that will help you. I gradually realized that my defense mechanisms were extremely well developed and I was a medieval siege engine's greatest nightmare :-)

When I expressed my anger (words/expression) and saw people respond, I realized I wasn't powerless/helpless and that my "fight or flight" mechanisms bother worked extremely well. I could "relax" and let nature do its thing instead of worrying about it so much. Without my "head" in there trying to direct things, I was fine.