Problem: Two volleyball teams meet on opposite sides of a net. they

Answer: lob the ball back and forth over the net.

Problem: How to find out what time you were born
Ask your parents and other people present at your birth.
Your parents might remember when you were born, or direct you to other family members or friends who were there when you were born. They may also have a copy of your birth certificate.

Answer: If your parents have any " family history " boxed away, look through it for old diaries, family bibles, and family newsletters around the time of your birth. Know your country's birth certificate policies.

Problem: How to use modern psychology to live a miserable life
Accept that you might be one of the people built to be miserable.
Blame the cortical lottery. About half of all humans are born in the negative half of the " affective style " spectrum.
Answer: In a nutshell, some people are just born pessimists. Thanks to your genes, you are predisposed to focus on threats, and lack confidence to deal with them.