I had trouble doing pull ups too. Don't put yourself down, they are difficult especially if you are just starting.
Pull ups involve a lot of your back and biceps, I would work on building these muscles. Also there are certain exercises you can do to get your body use to doing pullups. One is where you hold the bar, jump up then try and hold yourself in the air and slowly lower yourself back down. Another is a reverse pushup where you have a bar a foot or so above ground. Lie under this bar and have to align to your chest. Then grasp the bar and pull so your chest touches the bar.
Also remember, different pull up styles use different muscles. Having your arms closed together works your middle back muscles and having them wider apart works the lats more.
Hope this helps!!
Well i was like you.A guy that use to look the other people doing tones of pull ups and i couldnt do even a half.Now i can do the max 10. Here are my tips.Start doing some dumbbells to strentgthen your biceps and triceps.Then when you will feel able to do some push ups hit em.Thats what i did and it worked :)
You could also try elastic bands... it will ease your weight and You will be able to make a pull up much easier... tie the band to the bar so it drops down around your knees step on it and pull:) hope it helps:)
When I was younger I couldn't do any pull ups either....so I bought a pull up bar tht goes in a door way...and I put it in the doorway to my room...and I promised myself tht every time I walked into my room I would do as much as I could...and after about 2 weeks of this I could do about 4 pull ups.:)
Do negatives that's how I did it.