RE: Need help pulling back compound bow.
Your problems are one reason I don't recommend compounds for youngsters. They have to be fitted properly to start with, then have to be re-fitted with every growth spurt. I'd really suggest getting on ebay and finding yourself an inexpensive recurve for now.
Find out what your draw length is, and how much you can draw comfortably. Factory recurves are always marked with the poundage they draw at 28". Custom recurves are marked with the draw weight the customer ordered at a specific draw length. It doesn't matter, the rule is the same.
Take the marked poundage and divide by 20. That will tell you how much the draw weight will vary from the marked weight, per inch of draw length.
Example: A recurve is marked 40 pounds at 28". Divide 40 by 20 which leaves you 2. The bow's draw weight will vary 2 pounds for each inch the draw length deviates from 28". Subtract 2 pounds for every inch under 28". (You would add 2 pounds for every inch over, to a certain point, but let's not confuse the issue.)
Now,once you knowwhat your draw length is and what draw weight is comfortable for you,you can choose a recurve that you can shoot NOW, and will grow with you as you grow. As you get bigger and stronger, the draw length and draw weight will increase. It's automatic. All you have to do is keep up your arrow supply.