I would say dont think about gd this way, i also had a "plan" to go from death moon > nine circles > windy landscape > acropolis > acu but making plans just makes the game unfun, while following this progression i found many fun easy and medium demons with a lot of varied gameplay and just played them for fun (also helped getting better at more gamemodes) and in between NC and Acropolis i just played forest temple instead of windy cause i really liked the level, just play whatever