Okay. I am both a mother and grandmother now. It horrifies me to even imagine that I screamed at my children, and my brain does not want to remember doing it! But I am SURE I did!
My opinion , at my particular stage in this game of life, when it is happening, when your frustration is growing, it is way too late, if you have not purposely already prepared yourself! If you know this problem has happened before, seriously, you need a pleasant, peaceful, quiet time of your own before you start your day.
1. What pleases you? A latte? Tea? Simple black coffee? Cranberry juice? Then get some and take it to your quiet place, where you can sit down, alone, with your Bible. (You can be alone in the same room as your spouse, if you both agree with this.)
2. Start by telling the L_RD about your desire to please Him and be the best parent you can be, with His help, then ask Him to help and to shepherd you, because He knows, even better than you do, the value of your child.
3. Read something from the Psalms or another Scripture that is calming, soothing, about His love, or just your pre-planned reading for the day.
4. And sip your pleasant drink, enjoying the quiet communion.
5. Ask for His help. Ask Him to prepare your heart. Ask Him to teach you His ways.
6. Then purposely meet and greet your day with the understanding that He is there.
Seriously.
And stop beating yourself up for the past! You have a future to do!
(Don't have time for this? You have time for the things that are important to you.)