That sounds like me. I've gotten better though where it doesn't take all day to do something simple. This applies to home repairs too, it took an entire day to fit a piece of drywall into an existing wall. First I couldn't cut the hole out so it was relatively rectangular, then I cut the new piece easily, but it wouldn't fit because the hole was rough, then I trimmed the hole a bit, then the drywall, then the electric outlet hole had to be cut, too small again, and widened that. Then it wouldn't lay flush so I had to find where the studs were sticking out, then, then, then... In an old house you have to expect issues, and the damn piece still won't sit flush on the bottom. A drywall person would do this in half an hour. This is the reason I won't work on an older bike, you just never know what's under the sheets.