Am I wrong

I'm tired of doing things for others and helping others when I get no help, especially because they don't help themselves and see me as the easy option. But I e worked hard to get where I am and even though I'm woth my NB dad I do everything I've been taking the load for him and his daughter to driving and making her lunches etc because her mom is awful and leaves her with a sitter Monday to Friday. I feel guilty but now that I have my own son I don't want to help anyone else any more. Part of my debts is from taking care of them and their needs. I just want to save and pay off my debts and take care of me and my son. Am I wrong for this. I've been doing it six years now. I know he was in a rut because of depression because of his kids mother and his life falling apart but I'm over it. I can't keep being the camel I need him to pick himself up and take care of his daughter now without looking to me to make it easier. Today he knows I don't wanna drag the new born out so it's "can i use the car" to pick up his daughter two cities over when he shouldn't even have to because her mom is the full custody parent and she should be doing it. I'm just tired. If it's not one thing it's the next and I'm staring to feel every time he wants to see his son thered another motive with it. When I try to explain he doesn't get it..goes right to " I need a car etc" but then doesn't do anything.