Firstly, yes this is a thread asking how to become more fit. Secondly, yes I have read the sticky, but I feel that what I want requires some specific changes to an average workout routine etc.
Now, about me:
I'm 17 years old and in college in the UK. I've always struggled with my weight. age 13 to 16 I was chubby/overweight, but never obese. I lost all the weight I wanted when I was 16, took about 9 months of eating shitty salads and running on the treadmill a lot. This wasn't a continuous 9 months, I gave up a few times. I was still unfit, however, and not as slim as I wanted to be. I'm 17 now and have put weight back on. I weigh something like 13 1/2 stone (maybe even 14) and am 5'9 in height. The picture is of michael buble, a google image that I could find that represents my sort of body, though mine is perhaps slightly chubbier.

My dilemma is this:
I want to look as good as the guy that ill upload in my next post (Dexter Morgan from the show Dexter). That's the sort of build that I'm ideally aiming for, however, my build doesn't bother me that much as long as I'm slim and not chubby like I am now.

The main thing I want is good fitness (both stamina and muscular). I'm considering attempting to join the royal marines, and if not then definitely the Territorial Army in a year or 2. For this I'll need great muscle form + upper body strength and also lots of stamina. I'll need to be able to run miles and be able to easily lift my own bodyweight many times. The problem here is that I get tired after jogging on the treadmill for 10 minutes, and I've never (I mean never literally) been able to do a pressup or pullup, not even one. I can't lift my own bodyweight.
Currently I'm doing 2 10-13 minute runs on the treadmill per day, but sometimes only one run. Apart from that I'm doing nothing other than situps. My logic was to lose weight first and then focus on fitness and muscles, should I not do that? My only equipment other than a treadmill is one 7kg dumbbell which I don't use. What's a good routine to do for essentially military training without such equipment, and considering my current fitness level and complete lack of strength? Also, I like to pig out once a week, occasionally twice (i.e. eat a pizza, have a few cans of coke and a big bag of maltesers whilst watching a film). I would like to fit my regime around this knowledge that I'll be doing that, but feel free to be honest and tell me that I simply can't. Any advice guys?
TL;DR: unfit chubby guy looking to join the military, only have a treadmill and 1 7kg dumbbell, can only run for 10 mins before start getting really tired, complete lack of strength and I like to eat shitty unhealthy food once a week. What do?




