It's a vicious cycle. Sure it would, especially if hazards lurk along the left side. You'd swing confidently, knowing the trouble won't come into play. And your shot pattern will be straight to a slight fade, which is more controllable. Here are a few adjustments to help you eliminate the left side of the golf course.
Many power hitters adopt a strong left-hand grip.
It feels powerful because it activates the left wrist and allows more hand action through the ball. But such a grip means you're constantly fighting a hook. So, you compensate by sliding your hips toward the target, moving our swing center ahead of the ball, and swinging out to the right. That strong left hand then must time the release perfectly to bring the ball back to the left and prevent a block. But the clubface often is either open or snapped shut, resulting in an errant drive.