I am glad you are discovering a positive, healthy way to cope that is making you feel more fit physically! Feeling more fit physically can help so much with mental/emotional health - give us strength to deal with the stress of daily life, or of therapy!
I know about this.....I exercise intensely often, too, and love to lift heavy, heavy weights! I may look quite small, but take pride in how much more strength I have than I look like I have!