OH my darling, let me share with you from where I sit 4 years out.
The fat cells that are rapidly emptying are also releasing serious quantities of estrogen. I had what felt like PMS for a year. Then there is the impact of losing your protective fat suit so all the world can see you. Then because you are focusing SO HARD on your food and learning how to manage your sleeve, you spend way too much time in your own head. On top of that you are trying to learn how to "be" as a regular sized person - which is kind of like moving to a foreign country where you don't speak the language. When I hit "normal' clothing sizes, every time I went into a clothing store, I was half waiting for the sales people to come and call me an imposter and tell me to go back to Lane Bryant. Rational huh?
At the 11 month mark I was probably as miserable and isolated as I have ever felt (short of post partum when my kids were born).
Stay on these boards, don't make ANY major life decisions and take care of you - it will pass. Do the things that feel good, and be mindful of when you are using food to hurt/comfort yourself. That is a sign that you aren't coping. Counselling helps. I wish I had the strength to reach out to a professional, but I was just so distraught yet thinking all should be well now that I wasn't so fat anymore. Fat was a symptom.
I have been away from bariatric discussion forums for over 2 yeras. I am back because I too need some support.
I send you a big hug and PROMISE that you will be ok.