Jillian Quinn says she’s always shown a sunny disposition despite all the hardships she has encountered throughout her life, including the miscarriage of her third child.

She’s showing her tricks by co-authoring “The Secrets of the Bulletproof Spirit: How to Bounce Back from Life’s Hardest Hits.”

Quinn, who is associate minister at the Interfaith Temple in New York, has been a life coach for 13 years.

“I couldn’t give these skills to people who wanted them,” Quinn says. “There wasn’t enough of me.”

That’s why she teamed with Azim Khamisa, a California resident who has worked to stop violence since his son was killed during gang-related activity in 1995. Khamisa forgave his son’s killer.

“That is a good example of the resilience that I would like to have,” Quinn says.

The book examines the steps to becoming “spiritually bulletproof,” including how to move on after a bad situation, why some people are always happy, even during hardship, and what to do when you feel overwhelmed.

Quinn touts her “forgiveness formula,” in which she translates the word “forgive” into “to give before.” Quinn says offering forgiveness often takes people out of their comfort zones but is key to the “bulletproof spirit.”

She also says a key is to learn from suffering. Quinn uses the metaphor of a potter and his clay to show the correlation between suffering and strength.

The clay starts out as soft and is weak and useless to its user. It is then put through fire and it comes out stronger and more durable.

Quinn also suggests an exercise to help you be “bulletproof”: Take small stones that symbolize you and the individuals you know. Each night before bed, place your hand on the stone that symbolizes you and say something you are thankful for. Then, take each stone and say why you are thankful for that person.

The book uses examples from prominent people to show how they turned misfortune into success.

And taking responsibility for situations in the past will allow people to move forward in the future, she says.

“Carrying around the pain of the past is like trying to live your life with a 75-pound bag of cement on your back,” she says. “If you really want to put that weight down once and for all and experience how light and free life can be.”