And sometimes you get a piece of wood that won't cut clean, no matter what you do.
I also have found out that (depending on the project) you don't have to have a completely smooth surface, especially if staining. When you wipe the stain it will lay a lot of the rough ends right down, and actually remove fuzzies in nooks and crannies if you use a rag with a small tool to go over it. An extra coat or 2 of poly makes things smoother (light sanding between the last couple of coats) too. And if you paint, you can hide even more imperfections -- just ask Scottart.
Don't be too critical of what you consider "mistakes". Others normally don't even notice, and the piece has it's own "character." No matter how hard you try, it'll never be perfect in your eyes.
RoutervilleUSA on Etsy
I took the tests and retirement is the best job I'm suited for.
Now I know why old guys wear suspenders.