Listening to the words which you have mentioned above, it's a truth and basically already known by human. But Only the Arrogant and haughty attitude make his eyes covered to understand the failure itself. Thank you've shared and wish your effort is always present in every word and sentence full of motivation. God bless you sir. Excuse me to restem.
The very first thing needed to improve on this is keeping the ego aside and accept that one has failed and then only improvement can be done.