Time as he grows old teaches all things.
The reason most people never reach their goals is that they don’t define them, or ever seriously consider them as believable or achievable. Winners can tell you where they are going, what they plan to do along the way, and who will be sharing the adventure with them.
Nowadays most people die of a sort of creeping common sense, and discover when it is too late that the only things one never regrets are one’s mistakes.
I will act now. I will act now. I will act now. Henceforth, I will repeat these words each hour, each day, everyday, until the words become as much a habit as my breathing, and the action which follows becomes as instinctive as the blinking of my eyelids.
Never react emotionally to criticism. Analyze yourself to determine whether it is justified. If it is, correct yourself. Otherwise, go on about your business.
With integrity you have nothing to fear, since you have nothing to hide. With integrity you will do the right thing, so you will have no guilt. With fear and guilt removed you are free to be and do your best.