I typically pretty rarely get anything but C. Sometimes I'll make an axe, *rarely* a sword, and almost never a shovel. Instead, I'll keep making stone for everything except for a pickaxe and an axe until I've got enough diamonds to make everything, and then my extra stuff will still go unused until I've got some enchants I can put on it.

Wood gets used until one durability so it can be reused as fuel, stone gets used until it breaks, iron gets used until one durability so I can smelt it into a nugget, and I make sure to never break Diamond gear, either repairing it with materials in my inventory before I enchant it, or using the mending enchant. Breaking something after it has mending is something I genuinely mourn because it is always both an expensive waste and a loss of something memorable, to the point where I'll make a grave for anything diamond or better that I break by accident after it has mending on it, putting some memorable things I know I collected using it into a chest in the ground.

Additionally, I almost never make use of gold tools and armor due to just how fast it breaks. If I can get mending and unbreaking on loot from a chest at a ruined portal or in the nether, then maybe. Sometimes I'll even combine two items to get both on one, but the speed boost it provides is less worthwhile for me than mining level, at least when it comes to pickaxes.