It is said that those of us who suffer from alcoholism froze our emotional maturity at the age at which we started to drink regularly. I am living proof of the voracity of that statement as I lived decades of my life, well into my early sobriety, with the emotional maturity of a teenager.
Impatience is a cornerstone attribute of emotional immaturity, and my ability to calmly wait for anything was as undeveloped as that skill can be in a human. I learned early in my recovery that patience was a tool I needed to master if I hoped to make it over the elusive hump to permanent sobriety.