One thing at a time. Know the problem. Learn to listen. Learn to ask. Distinguish sense from nonsense. Accept change as inevitable. Say it simple. Be calme. How to work better, ten simple things that make a huge difference.
You'll never change your life until you change something you do daily. The secret of your success is found in your daily routine. Maybe adding a daily habit of more love with your child might make a positive change for both of you.