The world's best welder has a right to his opinion. If he doesn't believe he's the best, who will?
"Hey, If I can't do it right the first time, I'll get it right the second time, or the third time, or maybe the forth time. All I know is I'll get it to stick together until it breaks again."
"Hey, where's my grinder? Anyone seen my grinder?"
"Anyone seen my copy of the other big red book? You know, my bible, the Farm Code!"
"I can cut out more weld in a day than most welders can lay down! The secret is practice and I do get plenty of practice!"
Don't hide that talent! Share it with someone that isn't as good as you. Mentor that poor SOB with less than perfect skills rather than laughing at him.
Last of all, don't take yourself too seriously. If you do, no one else will.
Al