There are many things to consider, especially when trying to beat demons. Guide your progression carefully, from very small jumps to massive jumps. Jumps are basically playing a fairly more difficult level then your hardest level. The basics you need to learn are how to buffer orbs, know all the game modes, and know all the orbs. Some important things to possibly consider in the future might be straight fly and tighter jumps, but you'll get there. Start from a really easy level and work your way up. Be patient. Have fun and hope this helps with your progression!