Hi June,
I am so glad you are part of the family here. You are expressing feelings we all have. It is impossible not to be discouraged with the unexplained high or the low you forgot to anticipate.
I would suggest you try just a little at a time to lower your blood sugar. Maybe focus on an average of 100 for a while. Make sure you have glucose tabs or sweeties or starburst in your nightstand, car, workplace and purse. That will allow you to fix a low quickly just in case. If you feel low, test quickly, pop a tab or three and muddle through for the 15 minutes it takes to feel up to par. You sure can't stop in the middle of parenting to fix your blood sugar, I remember well. Eventually

your family will tell you when you are a grouch!
Test before you drive until you know how a 100 glucose will sit with you.
For me, I don't feel really low until about 50 or 60, it depends on what I am doing. If I am engrossed or busy with something, it can sneak up on me. Sometimes I feel low and I'm not--I find it good to test. This was especially true when I was blessed with hot flashes. My husband is used to me sitting out for a few minutes in the middle of a project while I gag down some glucose tabs, then I'm up and at it again. For normal functioning, I find a 70 or so to be good--I have my basal (pump) well adjusted, but any physical work requires planning ahead with a balanced snack. Of course we are all different.
Hang in there. It's easier to whittle an A1c down a bit at a time and keep track of exactly how you do it. The crummy part is that it is hard work and you have to keep at it. In the long run I think it is worth the effort.
A big hug to you.
Mich