When you reminisce about your life, it's easy to focus on the moments of joy and happiness. Birthdays. Weddings. Anniversaries. Vacations. But what about those moments of pain, and sadness and heartbreak. What do you do with those? Do you try to forget about them? Or can those struggles and those hardships teach us a little more about who we are and how far we've come? Today on Now or Never, we're jumping in with people finding the courage to commemorate the most painful moments from their past. Katie Combaluzier's life was turned upside down in one deafening moment, when an avalanche swept her off the side of a mountain. Why she's choosing to mark the one-year anniversary by going back to the mountain - this time, in her wheelchair. A young girl honours her brother's dying wish - by taking his friendly black mutt and transforming him into a therapy dog. And a 94-year-old grandmother - who's never recovered from the death of her son, killed in the line of duty almost half a century ago - visits his memorial for the first time.