What is your miss (left or right)? Most golfers slice (ball goes right). Your swing path is out to in. Try using a neutral grip (thumb goes straight down the grip (not towards the left or right). Aim club face towards target...swing club back just above the the shoulder and swing club down and in an upward motion towards right field. Don't worry, the ball won't go far right. You might experience a draw (right to left ball path). If practicing swing, try slowing down your swing speed to get a feel for the motion. Slowly increase speed while still feeling this motion until you can feel it at your regular speed. You can also try moving your right foot back about 6 inches during setup.
Another thing that could be occurring is that your body rotation is getting ahead of your swing causing the face to open up to early and hitting right. Again, slowing down your swing speed to get the timing is needed.
Another thing to consider (as we age) is to investigate the single plane swing method. It reduces stress on back and successfully produces straighter shots. (made popular by Mo Norman and used by Bryson DeChambeau). There are videos on YouTube (Graves academy golf)
If you are hooking (going left) then your face is probably closed a bit and your facing a little left of target.