Check out this inspirational interview with Colin O'Brady, an adventurer and World Record holder for being the first person to cross Antartica alone! He brought all of his supplies with him on a sled which weighed 375 pounds starting out, which he pulled by himself for 12-13 hours per day. He has also completed the "Explorers Grand Slam" which is climbing the Seven Summits and going to the North and South Pole - which he did in only 139 days.
He talks about his solo adventure and his experiences climbing deadly peaks like Everest, and how he was tested both physically and mentally. By telling himself he can complete whatever challenge he is undertaking, instead of saying "I can't" he was able to overcome the doubts that creeped in. We can learn from his experiences by telling ourselves that we can complete the workout, or just one more round, or even just one more rep!
Check out his adventures here: https://www.instagram.com/colinobrady/
21 Deadlifts (155/105)
50 Walking Lunges
9 Strict Handstand Push-ups