Just wanting some help pushing harder

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So i'm Amanda, I am 24 years old and a mommy of a beautiful 17 month old girl with the attitude of a teenager! My goal is to build up my endurance,strength, and get back to feeling sexy. My Fiance and I have been stuck in the same routine since becoming parents and i want to encourage us for healthier lifestyles. this is the one thing that's "me" time !