You're doing great. For them and for you.

I can't tell you how many kids I've seen whose parents are so self focused- especially if the parent is dealing with other problems- that the kids get lost in the mix and are left to deal with life on their own. Their needs don't get met. It's not always the parent's fault, they're overwhelmed by their own life. The amount of things you're managing and juggling for the sake of yourself and your kids is really awesome.