Describing how she has had to develop 'neuroplasticity' - creating new pathways in the brain to help her move her bionic arm as well as mentally overcoming barriers. "Every day it is worth taking small steps to develop this. Maybe go a different way into the office; do something a little differently; learn something new", de Lagarde encouraged attendees.
And two years later, she and her husband went up Mt Kilimanjaro a second time.
"I suggested this to my husband about seven months ago. He thought about it for a second, and said 'okay, if that is what you want to do, let's find a way to do it'. And we did.
"It was a challenge - the first time I was going up I had all my limbs intact, and I remember how difficult it was back then. But two years later I was then climbing it as a double amputee."
But she climbed that mountain, overcoming all the "fears and negative voices".
De Lagarde concluded: "My mother always said to me 'This, too, shall pass' and I never realised the truth of that until now. It is important to remember that, no matter how dark those days are for you, you have a choice.
"Every day is a choice, and slowly, slowly, step by little step, you can rebuild and strengthen your resilience, and overcome whatever challenges you face."