Hi and welcome to the forum. It sounds as if your world is spinning way too fast. The best thing you can do is start putting some rules in place. You have yourself and the kids to care for as well. He needs to understand you can't be and do everything for him. He needs to step up and help out. You aren't alone. A lot of people have been where you are and have had to do similar things. It is fine and healthy to put boundaries in place.