I can frame a wall and hang a door, but the moment it's finish work, the little things give me away. The joints don't quite line up, the trim has gaps I have to fill, and anyone who knows wood can see it. I look at a master's work and can't figure out how they make it look so clean.
More people experience this than they realize.
Your rough finish work shows everyone you're still learning the craft.
If this sounds familiar, the Library can help you find the bigger picture.