I'm wanting to reapply for the army. But i let myself go a bit, and started smoking again. So im now wanting to get fit before i even think of entering the Office. So im just scouting around for the best weekly plans that people have make. Such as running and weigh training. Also with Press-ups and sit ups, I can do around 15-20 chin ups no problem, but with sit and press ups, im pretty pathetic. Any sort of routine to get better at 'em, or just throw 'em in when i can?