You can't control everything. Sometimes you just need to relax and have faith that things will work out. Let go a little and just let life happen.
Confucious said that real knowledge is knowing the extent of one's ignorance.Aristotle and Socrates said the same thing.Is it a skill that can be taught or learned? It probably can, if you have enough of a stake riding on the outcome...
Do what you can wherever you are, from wherever you sit in life. Give me your time or your talent your money if you have it.