How many of you, the skilled readers of this forum, make flawless projects? There must be some.
That said, when mistakes happen, when things don't go as planned, how do you feel about it and what do you do? When it happens to me I try to learn from it. What happened? Why'd it happen? What could I do different next time? How do I correct what happened? Each of those is actually a story in itself. Is a new technique needed? A new tool?
I think deciding on a fix, or correction, is highly dependent on what went wrong. A mis-cut tenon? Part too short? Round an edge over while sanding? Carcase not square?
Maybe something can be glued on. Maybe the design is altered. Maybe a new part is needed.
How do you feel about it? Does learning from the mistake help?
I'll say this about my own projects. After it's done, I like some quite a lot more than others depending on how many mistakes were made. Yet anyone that sees any of them think they all look great. I can't help but think some of them should be burned.