If you are asking whether you need to back it off, then you need to back it off. There's no need to be macho and hurt yourself. I once heard about a chick taking a huge bull elk with her bow set at 45 lbs. So, 70 lbs isn't necessary, unless you plan on going to Africa to hunt. If you can't draw without first pointing your bow to the sky, then your are pulling WAY too much.If the draw weight is set right for you, you should be able to pull your bow back smoothly, stright across your face, without skying. Rob is right, you need to work on your form. Drop your draw weight to where it's comfotable for you and just work on your form. The extra draw weight will come later, if that's what you're in to.

If I wanted to I could shoot 70+ lbs all day, but it's just not necessary. I have my bow set at 60 lbs and that's only because I'm not allowed to go any higher for IBO.