Lilfroggi you are doing well. It is just really really difficult and horrible.
Things that helped me were getting outside for walks, exercising generally, taking up every offer to do things with friends and talking to friends and family. I was honest and open with everyone (well not always totally with my elderly parents who live on the other side of the world, I didn't want to worry them about stuff when they couldn't see me for a hug). I felt sick for a few months and couldn't eat properly for ages.
It also really affected my sleep and I got tablets from the doctor to help with this.
Counselling helped me a lot. It was also a very busy time at work for me, I went for and got a big promotion which gave me a lot to think about.
I did not bother even thinking about dating and a year on am still not interested. I watch my husband come spilt up and get back together with the woman he left me for and realise I need to just look after myself and my children, I don't want the responsibility of taking care of someone else.
Do what is best for you. I think about myself now and put me first. If I can't look after myself I can't be a good mother for my children. This doesn't mean I'm selfish, just sensible.
I'm currently reading ...
A Woman in Your Own Right: Assertiveness and You by Anne Dickson and finding that really helpful.
I remember saying to my counsellor "It's not fair" thinking she would give me some great words of wisdom but all she did was agree with me that it wasn't fair (my h leaving) and I realised that life isn't always fair but you just have to get on with it.
I'm sorry, this has turned into a bit of a post about me, hope you find something useful in it.
Goodl Luck, it's not fun but you will get there.