I would add that it's helpful to let your pin "float" over the target. By trying to hold the pin dead on a spot, you tend to tense up which is never good. I've read articles by Bill Winke and Randy Ulmer (2 experts) and have tried this myself with great success.

you are definitely torquing your bow. loosen your grip. the riser should lay right about in the lifeline of your hand, keep your fingers free and loose. You may also want to try a few different releases until you find one you like. Are you shooting your proper draw length?

sounds to me like your poundage might be alittle to much try lower and should help you smooth it out