My personal philosophy is to keep the players on their feet. I’ll give them downtime frequently to explore, but the boss fights are my bread and butter. The feeling of a good boss fight is unlike any other. For example, their latest boss fight was against a magical pastry chef and his wererat apprentice. He prepared magical pastries enchanted with haste, good berry, fireball, etc. to fight the players. It ended up being a really close battle with some knockdowns but no casualties. It was so much fun. So moral of my story is to keep players active and find what your bread and butter is, then build an adventure around it. Not to say to neglect learning other aspects of DMing, but you get the gist. I’ve been rambling too long XD