I hope a sign of good parenting is you think you are not doing as good a job as you could. Going that extra mile for your kids is a noble thing but I find I have to keep it in check. I find if I do it too much, and do a really good job helping out and supporting, it gets taken for granted, and there is no appreciation for the effort which is almost acceptable. Unfortunately, when they even hint that they are entitled to be treated better than they are, I have no time for that shit at all. Not the best reaction for a problem I have probably my created myself.
I am trying to let them fail for themself, then resist the temptation to swoop in and solve their disappointment. They just will have to marinate in that feeling in order to have a chance at the wisdom we have developed by stewing in our own consequences.