It's great that your feeling more confident In yourself. I do hope that if she is arguing and yelling or threatening you you aren't just standing there and taking it trying to listen. You should remove yourself from those situations and say something like. Let's discuss this when we can talk not argue about it. And go for a walk or do whatever it is you need tondo to detach for awhile.
The person that you will spend the most time with in your life is yourself, so make yourself as interesting as possible.
