Welcome to the forum, and thanks for posting!
A bit about me: I had an eating disorder when I was in my late teens, which really "put my life on hold" for a few years. I didn't date anyone until I was 18, and then, because of my illness, I didn't have my first boyfriend until I was 21, which was last year.
I am very glad you have overcome your eating disorder. It's such a relief, isn't it! :) I'm glad you left the man who wasn't treating you well. If you don't mind me asking, have you sought help for your depression or PTSD? It's vital that you start or continue to seek help for those conditions, so that you can minimise the impact they have on your wellbeing.
I didn't have a boyfriend until I was well. I also didn't date at all during my eating disorder. Firstly, I spent a lot of time by myself indoors, I was frail-looking, and I had very little energy. Last year I had a boyfriend for a few months, and then decided that I just wanted to be friends with him. Right now I'm in my first "serious" relationship. We've only been together for 2 months, but it feels like longer :) We've been friends since the start of this year, and he is also in my friendship group. He knows about my past experiences with mental illness, and is really understanding and supportive. We are well suited as a couple because our personalities are compatible and we have similar goals and values.
As you are really struggling this month, meeting a new man is going to be harder. Trying to think about someone else new, and about their wants and needs, is really challenging when you are struggling to look after yourself. I understand wanting to have someone right there, who you can cuddle up with. That is a healthy thing to yearn for. If you do meet someone kind and genuine, then by all means go on dates with them and get to know them. You don't need to tell a new man all about your past on the first few dates, but can open up to him gradually, as you become more comfortable with him, and as you get to know each other more. Picking or attracting the wrong type of people is unfortunately quite common.
Spend as much time with friends and family as possible, and seek help from your GP for depression and PTSD.
I hope something I said has been helpful :)