Let's begin with drives and approach shots. As an approximate rule of thumb, when factoring the wind, take as an example and yardstick the following : a 20 mph wind directly against you will take 20 yards per 200 yards off your strike, and a 20 mph wind directly behind you will add 20 yards per 200 yards to your strike. Any other strength or direction of wind should be factored with that in mind, and the rest amounts to figuring out fractions.
As for calculating the amount of drift due to a side wind, experience and memory are key. Obviously, the bigger the side wind, the bigger the drift and the greater the distance adjustment to the target triangle (drag and drop).
Lie is another important factor. The stated percentages are very approximate and should be applied with discernment. The longer the shot, the higher the percentage of distance lost. For example, a 30%-40% lie will take 10 yards off a 100 yard shot, and will take 15 yards off a 150 yards shot. Again, experience and memory are key.
Now putting. Let me start by saying that you must be mindful of the quality of the green (slow, normal, fast, or very fast), as this has a serious impact of the distance you can expect from a strike. Also, try to relate the speed of the slant mini balls + the distance between you and the hole to a fraction of the squares in the putting grid; e.g., medium speed + 10ft = 1/3 square, and adjust the target triangle with your mouse accordingly. If you are putting downhill, add the distance downward to the distance forward before making your target adjustment. Inversely, if you are putting uphill, subtract the distance uphill from the distance forward before adjusting your target. Finally be prepared to decrease or increase the power of your strike. Experience and memory are key, once again. Above all, never try to muscle a putt in the cup to compensate for the slant. This will lead in most cases to a bogey or a number of them.
As for an equipment upgrade, there is no doubt in my mind that the Ping Rapture club set (excellent distance + great forgiveness + low meter speed) can progressively boost your game to a new level, especially at the hack, amateur, or even pro level,.With those clubs, I recommend keeping the starter wedges, which have a comparable meter speed.
GI-S or GI-SD balls would be a help as well by adding the possibility of effective backspin and shot precision, while slowing the meter somewhat.,.
Having said this, do remember that nothing can improve your game like a true commitment to that very improvement, through sharp focus and observation, and swift reflexes.You just can't play recklessly and expect great results.
Also, when shooting, find a consistent area of focus immediately on the left of the hit line, and get ready to hit swiftly as soon as the green moving bar nears that line.
That it for now, and all the best!