Hello! And before anything sorry, I know this must have been the number 1 question made by new players, but i have been googling a lot and i either get help for endgame content or FF XIV

My questions is: How can I get better gear? Im currently lvl 23, but most of my items are lvl 10.

I have been grinding some monsters to get some treasure coffers on the world map, but it is impossible to me to guess the code. Im not very lucky, so 9/10 I will miss the correct number by like 1 or 2 digits. Am i just wasting my time with these coffers?

Is there a city or something were I can get better than lvl 10 gear?

thanks!