Help! Knee Pain :(
Hi! I'm 18 years old and I've decided to finally stop being lazy and take life into my own hands. I weigh around 160 and want to be 145, as my height is 5'7". I started working out the week of thanksgiving using Fitnessblender's 37 minute fat burning cardio. Just recently, I've started doing Cardio 1-2 of P90. All of a…