If I am reading this correctly you are using your 20 yard pin at 5 yards ? Arrow trajectory rises as your arrow comes off the bow and then begins to drop. At 5 yards on in I use different pins accordingly. Your sight position will be the same at 5 yards as it is at longer distances . It takes a little practice to find out which pin to use. I shoot alot of tournaments and practice at these yardages often. Can you effectively sight in for 20, 30 , 40 etc.? If so go back the other direction on your pins as you get very close. It will take a little figuring out. Great advice from the other posts on here also. Your sight should have a gang adjustment. If not , some sights have screws that can be removed and refastened in a diferent mounting hole on the sight. What sight do you have and maybe we can help some more.