How SHAPE Reader Sara Morrisroe Lost 78 Pounds

“Marathon training requires patience, especially if you’re a newbie. Begin gradually to avoid burnout and stay injury-free.”

“Fitness classes can be intimidating—even more so when you feel self-conscious about your looks. Go in with an open mind and you’ll meet people who are on the same journey.”

“I download Jeff Galloway’s training schedules online and look up calorie counts to keep my diet on track.”

“Workout clothes were never a priority. But now I can’t exercise or run a race if I’m not wearing my favorite shoes, top, and shorts.”

“My CamelBak bottle is always at my side. It helps me drink a lot of water quickly. I aim for 72 ounces a day to stay hydrated and healthy.”

“I pack unsalted nuts and pretzels with string cheese in snack-size plastic bags and munch on them at work.”