Dancing with the Stars contestant Noah Galloway appears to be a confident and proud man onstage, but it took him a while to feel that way.

Galloway dropped out of college to join the military after the September 11, 2001 terrorist attacks, and during his second tour of duty in Iraq back in 2005, he lost his left leg above the knee and left arm above his elbow due to an improvised explosive device attack, People reported.

Galloway, 33, remained unconscious in a German hospital for five days and then reportedly sunk into depression once he was able to return home in Alabama.

"I was drinking, eating bad, spending days at the house with out leaving," Galloway told People. "And then one day I realized I wasn't being a good father, a good person. I let myself get out of shape, and something needed to change."

Galloway then got a prosthetic leg and began working out to get in the best shape possible.

"I knew that fitness is better than any medication out there," said Galloway, who currently has six-pack abs just like he did in college.

"A buddy of mine who was in the Humvee when I got hit saw me on Facebook working out, and invited me to do a race. And after that, I want to do another race. It kept growing to bigger races. It led me to be on [MTV's] True Life about the Tough Mudder races, then I made the cover of Men's Health, then I was on Ellen and then here I am on Dancing with the Stars."

Galloway is currently paired with Sharna Burgess on Dancing with the Stars' twentieth season. He receives high scores and praise from the show's judges every week for his courage and ability.

"It's been this amazing journey that I can trace back to me getting up one night and deciding that I needed to quit focusing on what I lost and concentrate on what I have left -- that I have two of my limbs and more importantly, I have three children that I can be a better father for," the U.S. Army veteran explained.

Dancing with the Stars airs Monday nights at 8PM ET/PT on ABC.