Yesterday was mixed

First few holes playing S&T was AWFUL! I pushed the ball, topped it and just plain made ugly S&T swings. After another disastrous hole , I began to switch to other methods. It just got worse. I guess I get easily rattled and I confused myself by giving up on a swing and switching looking for a cure. Since my score was shot, all pressure was off of me for the back nine. I decided to play S&T style and made the commitment to stop switching golf swings during the round and just grind it out. I actually played the back nine pretty well and shot a decent score

My biggest disappointment is not sticking to the plan. I think I am really confusing myself. Ever have a similar experience?