[gjvc]

If it's hard or error prone, then do it frequently until you get the process nailed down.

Major life lesson -- practice makes perfect.

[TylerE]

Practice makes something permanent. Wether that is perpetual perfection or perpetual mediocrity depends on the person.

The average person could practice violin for 500 years and never be invited to play Carnegie Hall.

[gjvc]

If the average person were in an exceptionally good environment, they would likely get (much) better over time.