Christina answered TLC.com's questions about her current lifestyle and weight-loss progress. Her answers are below; they offer an inspiring look at an entirely new Christina.
Q: Describe your typical day.
A: Since my surgery, I like to be on the go. I'm always doing something, and sometimes I leave in the morning and get back late -- usually running a lot of errands. I also have a brand-new truck that I love to drive around town.
Q: What kind of exercise or activity do you engage in to work toward your goals?
A: My dad and I walk at the park across the street from my house. We do this three to four times a week, and I go a half-mile. This is huge to me because, before the surgery, I wasn't able to make it to the bathroom without losing my breath. I feel great about my progress. It's amazing. I'd like to go to a gym in the next year to continue my exercise.
Q: Who or what is your motivation for keeping the course of your weight-loss journey?
A: There's so much I want to do, and there's so much I missed out on. My motivation is to never go back to how I was. I want to travel, sky-dive and go to college. I want to live life. I want to go shopping and spend time with my sister. I do not want to be stuck in a room like I was for four years. My husband and my family are also motivation for me to stay alive and be healthy.
Q: What is your biggest obstacle in staying on track with weight loss?
A: There are so many obstacles and constant hurdles. I had my gall bladder taken out, and I have issues with my foot. Stress is also an obstacle. I'd say the continuing struggle to be active even though my body is tired or sore is my biggest roadblock.
Q: How have friends and family reacted to your weight loss?
A: My mom, dad and sister are so proud of me. My grandma, even though she has dementia, has noticed how much better I look. She says, "You have lost so much weight!" My husband is also happy for me. I've gotten nothing but positive feedback.
Q: In five years from now, how do you envision your life -- and your body?
A: In five years, I see myself weighing between 125-140 pounds. I want to have a career in the medical field. I also want to have a family -- maybe having four kids, but that wouldn't be in five years! I want to stay happy.