Right after a growth spurt, lots of athletes get clumsy for a while. Bigger changes take time to settle in.
STILLNESS
STILLNESS
A sudden change in the equipment calls for recalibration, and the clumsy stretch is that recalibration happening. Longer limbs mean every distance you had learned is now slightly wrong, so coordination that had gone automatic has to be rebuilt against new measurements. It is not ability leaving; it is an update in progress.
If your body or your circumstances changed recently, expect a few awkward weeks and lower the stakes while they pass. Go back to simple repetitions of basic movements rather than pushing for performance. Be as patient with yourself as you would be with a beginner.
Where do you feel clumsy inside a change you wanted?
Free, with nothing to buy inside it.