“But there are some things that you cannot be sure of. You must take a chance.
If you wait for a perfect weather, you will never plant your seed. If you are afraid that every cloud will bring rain, you will never harvest your crop.”
Book of Ecclesiastes.
The only thing we can truly control in life is our internal domain, our interpretation reaction and personal decision. Everything else, the external reactions to our actions, other people and the happenings of the world and universe at large are things we can not.