Ah, the eternal balancing act, eh? You mix in endurance, speed, and technique, and suddenly it's a chore. Well, here's a thought: maybe the problem isn't the training itself, but the way we approach it.
Structure is important, sure, but don't let it become a straitjacket. Instead of obsessing over segments, try viewing your rides as a whole. Incorporate variety, yes, but also allow for spontaneity.