nah do this full body workout twice a day 7 days a week.
push ups sets of 1-2-3-4-5-6-7-8-9-10-9-8-7-6-5-4-3-2-1 with 30 seconds rest inbetween each set
walk up and down the room during the rest period.
5 sets of 5 dips between chairs, keep doing 5 sets of five, when they get easy put something heavy in a backpack and continue.
go for a 4 mile run every day during the week, after a week your body will be falling to bits but keep at it, soon you wont feel sore and you`ll get fitter and fitter.
When you can do 5000 push ups a day like marvin hagler or Ruben "hurricane" carter your in shape