I know it can be very hard, very taxing, and very time-consuming to raise a child. Even though, you have to acknowledge the fact that they are your child. In other words, have some respect for them, don't forget about them or neglect them, and most of all, don't mistreat or abuse them. They're your child, and you have to care for them, appreciate them, and love them.
You and your child may not always be on the best terms. To help cope with this, you need to learn how to reconcile your differences. For this, you need to be calm and collected, and you shouldn't resort to screaming matches.
Another important thing: you shouldn't try to live your life through your child. This puts an unnecessary burden on them. Everyone has some regrets as to what they didn't do in the past, but we know we can't change the past. We should just move on.