Anger is totally normal and totally ok, for a while. Feel it, rant, rave, process it, and then try to move on to acceptance because if you don't it will eat you alive.
You have been through so much, and I'm sorry. I know how hard it is to take time for yourself, but I think that even an hour a week alone to process will help you tremendously. If you could find a good support group (Al-Anon, or one for grief) that would be great too.