Pick a small target
You’ll focus the best on the tee shot at hand if you make it a habit to pick out the smallest target possible to aim at. Don’t simply think in terms of hitting the fairway or even one side of the fairway. Instead, pick out some specific, visible point as your target. Usually, this specific point will be something in the distance rather than part of the fairway itself. Aim for a particular branch on a tree, or the top of a church steeple, or perhaps even the flagstick itself. Once you’ve selected this specific target, keep it in your mind’s eye as you finalize your preparation and start your swing.