It's hard for me to separate out the therapy that helped with the PTSD from that which helped with the BP. But it was definitely helpful to get all the tools I received from T. It was helpful to have a place to go weekly where a neutral person could observe my moods and help me learn to recognize when I started flying or sinking.
Years ago when I was first diganoised what was then called the depression, manic depressive association ( now known as DBSA) was an invaluable sorce of tools. People in the trenches who got it, who could speak from the heart. Like fern said you know you are not alone.