Hi Phee. I posted on your first thread under a different name and have been following your posts since.
I haven't read all the replies but a lot of what you have posted recently has really resonated with me from when I went through something similar with STBXH. When we initially broke up, aside from the gut wrenching pain, I was also scared to go out and felt anxious a lot of the time. I felt like I had an identity crisis, I no longer knew what clothes suited me etc.
In hindsight, I realise that so much of my self identity was tied up with being my H's wife. I had been with him 12 years, since I was 17, I'd never spent any time as a single adult. Without my husband, I didn't know who I was. Plus all the self blame crap I went through believing his affair was in part because I wasn't good enough. It was very scary at the time.
However, I took strength from any and all progress I made. I kept a journal to remind myself of how far I'd come. And actually, it was really good for me ultimately. I got the chance to reinvent myself, be whoever I wanted to be. I found my independence and worked out who I really was - what I loved, what I didn't - without the influence of my dickhead H. Much of this was helped along by a new job. And because STBXH was having our DC eow, I got to spend some time working out who I was as a person other than just a mother. I began to enjoy my time apart from the DC which enabled me to enjoy my time with them more.
Life is really good for me now. I've had shit to deal with like most people, including a fairly recent chronic illness diagnosis, but I handle it all so much better than i would have back then. When you've been to hell and back, your self confidence and self believe soars.
I know how much this hurts right now, I know you probably don't believe us when we say it gets better (I never did at the time either), I'd probably have been cross if someone had told me it was the best thing that could have happened. But actually it really was. I'm immeasurably more happy now than I ever was with H. You're doing so so well even if you don't think you are. Take it from all of us who have walked this path before. Just keep putting one foot in front of the other. You might not know where you're going yet, but I know you're on the path to bigger and better things. You're walking your way to a much happier life. And the posters here and the people that care about you in RL will be happy to hold your hand for as long as it takes until you get to that place where you feel free.