I'm new to this community, and I want to open up with this post. I only have access to the Lite version of Geometry Dash, and I'm kind of curious about something. So, the order that I beat the levels in are as follows.

Stereo Madness

Back On Track

Polargeist

Dry Out

Base After Base

Can't Let Go

Jumper

Time Machine

Xstep

Cycles

Electroman Adventures

Theory of Everything

Clutterfunk

I haven't beaten Clubstep, Electrodynamix, or Hexagon Force yet. Something I'm curious about are the levels I really struggled with. Those were Dry Out, Can't Let Go, Cycles, and Clutterfunk. I beat Xstep before Cycles because i think Xstep is more fun than Cycles, I really did not like the back and forth gravity changes in the ship segment, but i really likw the ball game mode. I just think its fun. Clutterfunk was the last pre-Clubstep Insane level that I beat, and I beat it last night as of the time I'm writing this. Did anyone else struggle with these levels? Or do I just have a skill issue?