I love this fun game--knocking Humpty off the Tee is not as easy as it looks. The hole is the tee and that tee is tiny. Knock it off and you are putting lights out!
Do you have an overactive head when you putt? If so, you are missing the cup. Excessive movement with thy head, throws your shoulder line off, which in turn will throw off your putt's line. Instead, grab a penny and use it to calm those thoughts between thy ears.