I sometimes teach kayaking
For most people the first time in an unstable, hard to control boat is wobbly - and yet many people instantly say "I'm no good at this"
I learned I have to remind then that they have no reason to be good at it the first time
Before you can be good at something first you have to be bad at it - and for that you at least have to try it!
“If a thing is worth doing, it is worth doing badly."