Repeat the following line in your mind until you believe it:
"I have many four-leafed clovers and I keep them with me always."
Practice careful breathing mastery.
Insert a small gust of fomentation at the right time when you are nearly finished with masterful breathing.
Worked for me!
Similar to advice given by the Valedictorian of my high school class, that the secret was
"to get pregnant / but not
literally / I hate to say that
/ it's really like getting pregnant
/ I insist".