What are some good workout routines for a 13 year old (I weigh 147)(Please do not delete)
Dude, you ask the same questions everyday! That's why they get deleted.
Join a Gym.
run is the best ways or up and down steps probably hard for a 13yo to join a gym but lots of workout vids on YouTube
You could jog around the neighborhood like 3 or 4 times, you could also ride your bike, (if you have one.)