Congratulations on your first ever dishwasher!
Okay, here goes.
Cutlery: organise by cutlery (forks, spoons, knives all grouped together and stacked neatly). Larger utensils such as tongs, large spoons, chef’s knives should be appropriately stacked in a way that does not collect water (don’t put the large spoons in face up).
Plates: stacked neatly together, bowls face down near the back of the dishwasher.
Glasses stacked neatly on one side, cups on the other side.
USE THE HEIGHT ADJUSTERS. Most people don’t know about these from what I’ve found. See a crap video here. And refill the rinse aid and dishwasher salt as soon as it’s run out.
If you stack neatly in an organised manner, you are more likely to have a cleaner load and it makes things easier to put away. It’s basic logic and common sense. If anyone out there agrees with me, please tell my partner.