The thing about 'coping' is that it doesn't mean 'feeling great about everything'. It means finding a way to get through, despite the fact that things are really, really hard. I mean this kindly, but anybody who'd been through what you've been through would be feeling just as shit as you do right now. You're not supposed to feel good about walking away from an impossible, manipulative relationship with someone who blames you for everything that goes wrong for him, and who deliberately makes you feel bad for doing things for yourself. It's much easier to walk away from a relationship where both partners agree that the best thing for both of them is to split up, and so, in a way, the worse you feel, the more it proves that you needed to leave, because the worse you feel, the unhealthier the bond is between you and him.
I think you're coping great. You're doing what's absolutely necessary, and paring back all the rest, and that's exactly how to do it right. Crying and feeling like everything is wrong isn't 'not coping', it's the first and most painful step towards feeling better. It's definitely a mountain to climb, and you're right at basecamp. It looks like an impossible task but you'll do it if you stick at it and do a little bit at a time.
Have you blocked him? Your progress up the mountain will be considerably slower with him hanging on your coat tails, and do you really need to hear again how badly he thinks you've screwed him up? That's just one man's opinion, after all, and you already know it. He's not going to add anything nice to it, is he, because he's not nice.