2 Timothy 3:16

“All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness,”

When you are wanting to let go and move up to the next level you have to stop being bitter towards your next level. When you want to get to the next level, procrastinating and being reluctant to let go of old habits and to stop clipping your own feathers you will not be able to get to the next level. You need to make sure that you are ready to move up to the next level and not be bitter towards it.