Fountain Diamond Record - Day 3

It's only day 3, but I'm already getting tired of it, so this is the end of the record!! The diamond acquisition amount won't be a reference since it ended so quickly, but I've shifted my focus. That is, not 'how to increase diamond acquisition' but 'how to reduce the number of rerolls' (and also 'how to reduce the mental energy spent on the fountain'). This is because I thought, 'Isn't it better to settle for runes or silver shards if I'm going to reroll endlessly for a small amount of diamonds?' The fountain level is max. The general method is: First, take diamonds and UR or higher runes/silver shards. On the first reroll, take diamonds and UR or higher runes/silver shards. If there are 5 or more remaining slots, reroll. If there are 4 or fewer remaining slots, settle for SSR runes, SSR silver shards, or red orbs and finish. The problem is gold (I don't need gold). But is it worth rerolling when there are 3 or 2 slots left to get rid of gold? (The probability of getting something other than gold is high, though...) Is it worth it if you consider that 20 diamonds can be used to change unwanted gold into something else? Instead of taking unwanted gold, maybe it's better to spend 20 diamonds to buy the right to get diamond runes/silver shards. It depends on the player, but isn't it better to just play casually and get good rewards?