Help Needed for Lowering Par 4/5 scores

https://preview.redd.it/isjpenwa3nsg1.png?width=1182&format=png&auto=webp&s=c53be94e27419d44694105c9d3f214103aa22f74

https://preview.redd.it/7ihmw0kk3nsg1.png?width=997&format=png&auto=webp&s=85e5d0bc3aa87a5961fc953f788db761a77da82f

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I've been playing a lot of a Par-3 course at my club and I've gotten to a really good point for par 3s, but I'm looking to get a much better avg per par for 4s and 5s. Any tips?