My anchor is my ear. Sometimes (not too often), the string will slap my forearm...
I am no expert, but it sounds like your draw length is to long. I would suggest a reputable bow shop to help. I am still shooting 20+ year old Browning bow and most of my arrows touch at 20 yds. If you can get all the info for the guys around here, they will sure enough be able to help ya out. Good luck!