1. This winter, go to the range twice a week. Get a small bucket. Hit half the balls with a full swing, and use the other half for pitches from 50-100 yards. It’s likely that the balls will be cold and not go as far as you expect. All that (~30 shots) should take about 15 minutes. Spend 45 minutes on the practice green hitting chips and approach putts. Practice short putts at home.
2. Get a lesson to find out how to put the ball in the fairway off the tee if this is a problem for you. If you normally hit less than ten of fourteen fairways, it’s a problem.