I've visited this site a couple times before and have found some good advice, especially only losing weight. I used to weigh 310lbs, now I'm at about 201lbs. Tood about 1.5yrs to knock out though. Lots of work and dedication. 
But anyways, I need some major help ASAP. I leave to the Marines in about just a bit over a month and I'm having the most difficult time doing pull ups. I have to at LEAST do 3. Right now I'm able to do about 1/2 of one.
What I have started doing since Thursday is 120+ push ups (through out the day) and so stand up along a wall with my back straight against the wall and do curls. I'm doing only about 20lbs on the db plus 2-3 lbs for the bar. I need some advice, don't worry about me overdoing it cause I will regret it in boot camp if I can't at least do the minimum. I can put more weights on the db if needed and do less reps/sets and do more push-ups. Whatever it takes except using any supplements. I have a standard bench it the basic weights on it. Thanks all for any advice.
But anyways, I need some major help ASAP. I leave to the Marines in about just a bit over a month and I'm having the most difficult time doing pull ups. I have to at LEAST do 3. Right now I'm able to do about 1/2 of one.