pretty much the same here. spoke to a buddy of mine last year (hes a doctor) and asked what he could prescribe for me to help focus on the course. told him my front nine is always better than the back....
he shakes his head cause he knows me well, says think about what you do in the morning before golf and what changes. for me its coffee. the caffeine helps me stay more focused. he tells me to buy a 5hr energy drink and try it. its absolutely helped my game. i drink my normal amount of coffee before, slam a bottle at the 6th hole and again on the 13/14th hole and its helped me out.
i agree on the cart thing and prefer to have my own cart to lessen the talking for me