I wish I could go back to blaming god, but I blame everything on me now that I no longer believe in a scapegoat.
Me too. I blame myself for things a lot of times, probably more than I need to sometimes. But I feel there's a sense of responsibility that comes from owning my crap, not blaming anyone else for things. At least as an adult, I am responsible for what I do with the deck of cards I've been given, nobody else.
That said, I tend to challenge establishments in many parts of life, politically, socially, in business. I don't say thank god when i get a lucky break, I try and thank the person/people who gave it to me. If I get screwed over in some aspect of life, I also don't blame god anymore, I blame the person/people/company/system I feel are responsible, and I try and accept my part in the responsibility, even if it was just me making a hasty or a stupid, unexamined choice.
For many years in the earlier years of questioning religion I do remember blaming "god". Also, thanking "god" when something good happened. When I talk to certain believers, I still feel I have the right, and the responsibility, to bring up the immorality of "god" (especially the Abrahamic Monotheistic god which is certainly an evil idea if there ever was one).
Don't remember exactly when I actually, internally stopped blaming god, but it did continue after I stopped believing in him, but I may have still thought I was agnostic about the Abrahamic god. I think it was just a natural result of really just thinking about the futility of blaming or thanking a non-existent entity. It'd be like blaming Voldemort or thanking Dumbledore.
If you sit and just think about what that means, that a personal god really can't exist, then it eventually stops being a habit to "blame" or "thank" something that simply isn't there. Better instead to blame or hold responsible or thank, applaud, celebrate the person/people/system who did or enabled something, and try to help make some practical, positive changes in the world.