honestly, it may be in part with ur swing. but if u havent had the problem before, then its most likely u being scared ur going to play bad and u start making mistakes and not taking ur time and concentrating on what u normally do. u want to do well in front of ppl and u get scraed theyll laugh at u because u it a bad shot. i have had the problem before. the way i turn away nerves and being scared is blocking everyone out. make it my own little world where it is just the game, nobody watching, only person im trying to play good for is myself. block everything out, play it as a normal round at ur home course, having fun