Oh VK, I read the title and thought it might be you, was hoping I would be wrong...
I'm so sorry to hear that you are struggling.... second all the advice given too you and you KNOW who you can email don't you???????
It's like giving up smoking, but sadly you can't get a patch or gum for this one.
As I've said to you before, all you need is willpower, and actually, for all this to go away, and for you to give yourself time and space to heal, there is only one thing you need to do... and that is NOTHING! No calls, no emails, no Nothing!
You CAN and MUST do this, read your old threads, please? read the one you wrote that I sent you to keep you focused in BIM, my heart wept for you the day I first read that.
Your friends are chivvying you along and telling you to get a new guy, OK so that would distract you, but long term it wouldn't help you break the cycle of a tendency to abusive partners.
Buy the book, buy whatever book you feel resonates with you, email your friends whenever you need help/support, let us help you stay on the wagon . Do this for you, do this for your beautiful DS, so he can see a happy, respected and cherished mummy in the future, not a battered, withered and downtrodden one.
Whatever handle you need to hang on to, to keep away from that ex of yours, grab it with both hands and don't ever let go.
You WILL free yourself from him, you will see that it was the right thing to do and in time you will regain confidence in yourself and see what everyone else that knows you sees, that you deserve much better than what you've had up till now.