I think I would add that we have to keep in mind this is our HOBBY, and working on it should be FUN, not work. Things are going to go wrong and you will get setbacks and maybe even have to scrap some part and start over, but don't get discouraged..........walk away for a day or week or month, then come back when it feels like fun again. You can't take this stuff too seriously. This isn't the car we need to have running to go to work Monday morning, so if it takes a little longer, so be it.
My Son Dan hasn't accepted this yet, if he makes a weld he isn't nuts about it ruins his whole day. Me, I put more filler on it and call it good.
These things are just cars and are made to be driven, so you can't sweat the fact you have some little flaw that nobody but you really notices or cares about.
Don