Building Up the Good Calluses
If you pick up a guitar and start playing, you'll notice the tips of the fingers on your non-strumming hand will get tender. Go join a Crossfit gym and see what happens to your hands. (Better yet, just ask a dedicated Crossfitter to see their hands.) If you run extended distances you will probably get blisters until your feet toughen up.
You are building good calluses.
Trying something new is awkward as an adolescent. It even hurts sometimes, but the pain usually builds toughness and resilience.
Not only that, but we rejoice in our sufferings, knowing that suffering produces endurance, and endurance produces character, and character produces hope...(Romans 5:3-4 ESV)
Malcolm Gladwell wrote in his book Outliers that it takes around 10,000 hours to achieve mastery. And God does not call us to something for us to mail it in or to remain freshmen.
Build those calluses.
Photo credit: Craig Sunter via Flickr