rating plunge. THROW IN THE TOWEL??


Well, if you want to win a game of chess, you need to be able to checkmate the opponent's king. So I'd suggest to look / read up some articles that focus on being aggressive but solid instead of sticking to a defensive play. Defensive setups seem unbreakable at times but in reality they're not, because you won't be making any moves to make your position stronger whereas your opponent has all the time to coordinate a break through.
I've never played rated games because I don't want to care or know about my strength in comparison to my opponent, so I play anonymous games. Perhaps that can help you get back in the groove. Playing is the best remedy in most cases.