Guitar Bending Exercises

Guitar Help?
I have this old acoustic guitar from the 70's. Now, I've been playing for 2 years electrical, but it is really difficult for me, to press down the acoustic strings, much less bend. I'm a little out of a rock / blues player. I'm thirteen years and I have small hands. does not having nothing to do with masturbation, but, uh ... Is there anything I can do to increase grip strength or finger of the left hand? as exercise or dumbbells mini?
I've been playing guitar for about 20 years and I still hate the acoustic guitar every problem. Although the construction streangth at hand you will take it a while you may want to try String Electric putting on it. That's all I use on my acoustic and it sounds great. I use GHS Boomer 10 or you could go to the 11's if you want to feel the string acoustic.
Guitar Technique - Bending exercises