Five steps is not a Buddhist belief.
Phil Mickelson is not a Buddhist. His bio doesn't specify his belief system.
Buddhist is their main belief
http://buddhism.kalachakranet.org/karma.html
Buddhism does not believe in a Supreme Creator.
Nirvana.
buddhists, funnily enough
Yes.
Most Japanese are Shinto and Buddhist.
There are 31 planes of existence in Buddhist belief
The central belief is focused on nonviolence and personal effort to progress the soul towards divine consciousness. Basically live and let live.
Not at all, that's why it is called your "Belief" my friend.