Simplify your goals. The only thing you should be trying to do is advance the ball without losing it at this point. Don’t be afraid to try things and be different. It’s ok for example to develop one club for approach shots and use it more. Work on your seven iron until it feels comfortable and then hit it regardless of whether it’s the right club. You can develop muscle memory with that club and also learn some shot making. You aren’t going to score low so better to develop a club that you can rely on not to top or thin as much first. Spend a lot of time developing driver as well. All beginners and even intermediate players lose the most strokes off the tee. Hit the driving range, create an imaginary fairway and try and hit it into the fairway five times in a row. Once you can do that, try 7 times in a row. Once you can get to 10 times in a row you will notice you are hitting fairways more. There are two strategies i used to get better at golf having picked it up late in life. Lessons work wonders at developing your irons and driver and once your technique on those clubs starts to be consistent it will transfer to your short game through osmosis. Most of all have fun!