What? Do you have a fight coming up? The very, very, very, very, veryveryveryvery last thing you want to do is gain bulk strength or bulk anything. You are a growing young man my friend- not to sound condescending- and still growing and developing. If you are interested in boxing there are gyms all over the Phoenix area and more than a few reputable trainers. As a maintenance type of training routine it makes more sense to focus on flexibility, and you can't go too far wrong in strengthening your wrists and forearms and hands. At a gym you would b given a routine that would feature a couple rounds each of skipping rope, doing crunches, maybe three on the heavy bag, three on the double end bag. It all depends on the gym you choose, the trainer that is there, and whether you are planning on competing or are just conditioning- and whether that gym trains competitive boxers or is a health spa in disguise. I don't know if you have boxed before or not but if you haven't a gym would be a good idea so that you don't teach yourself any bad habits as far as throwing punches properly and footwork are concerned; if you are going to exercise so strenuously every day you should be bringing your boxing skill and fundamentals along apace. Also, it is better to do your boxing stuff first when you are fresh and sharp than last when you are tired and pushing. There are several sources on-line where you can find gym listings for Phoenix; the accuracy of said lists is hit-or-miss. If you run into a bunch of gyms that aren't where the list says they are or if you have questions about gyms or trainers you can contact me through this site; I know a number of pretty good people involved in boxing in the area.