I shot in auto for so long I STILL sometimes forget to make changes to my settings. This is after almost 3 years of moving off of auto! I guess I'm just a slow learner!
Here's what happened with me. I shot in auto for years and years. When I decided to start taking control of the camera, my first trip to Disney, my shots were actually WORSE than the pior trip. But it's a learning curve. If you don't do it, you'll never get where you want to be. They next trip they got better, and the next time better still.
If you have little kids, you really don't WANT to spend all your time focused on your camera settings. Some people here are taking trips where they just focus on their photography. You have to decide what your trip is and what your priorities are. Mine are somewhere in between. I now shoot mostly in the semi-auto modes, but occasionally just throw the camera into Program mode, or throw it into auto ISO for a bit when I just want to be in the moment with the family.
The single greatest thing you need to do is to TRAIN yourself to adjust the ISO when going from indoors to outdoors or vice versa. I still mess that up sometimes. (Like maybe last week??????

) But at least it's not as often! Going hand in hand with that is the most important part...... training your eye to pay attention to the exposure meter in the viewfinder of your camera. If you forgot to change your ISO after a dark ride, it will definitely be flashing. After years of shooting on auto, that's the hardest.