Im 17 years old, I've just started Working out i go for up hill bike rides and i do 12 push ups at most i can do 30 sit ups. Im 6 ft tall my weight is probly around 125 pounds, Im real skinny and i have no money to spend can someone help me get strong. im joining the cf army in a year at most. i eat two meals a day big ones and i drink lots of water. i just dont know any other way to workout. my fameily is poor and the dumb bells i have are to heavy to me they are 25 pounds eatch and then thers more weight i can put on them. i need help bad