Instead of mining all day, there’s this alternative:
Craft bench lvl 2:
Find Gold In Rivers!
5 iron ingots
In a body of water that has at least 10 blocks of water in it, you can tap in the water to sieve it. It takes an initial 5 second to sieve an ore, and then one of these happens.
You get one of the following:
Stone, dirt, copper ore, tin ore, iron ore.
It keeps sieving for an extra 5 seconds and you get: gold, platinum, titanium ores.
You can sieve 100 times before it decays and you have to craft a new one.