First I would say get a fitted driver

First I would say get a fitted driver so your launch conditions are as close to ideal as possible and you are hitting the ball with centerface contact.

Once that is achieved I would suggest utilizing what Dr. Scott Lynn from Swing Catalyst suggests: find your dominate leg and create ground force pressure based on what that leg strength is. Ground force pressure has shown me how to create up to 7 mph more clubhead speed at 55 years old so I am a believer!