I had a student ask me if I ever get frustrated while I'm painting.
"Heh heh, who me?"
I told them yes and I am sure we all do, it's just that I have learned to approach it differently now than when I started. I have learned that if you can see through it, calm down long enough, there is usually a very significant lesson to be learned.
I remember an incident for me about three to four years ago as I was standing in the middle of a vast cornfield trying to paint. It was mid day, sun was bright and it was getting hot, but the biggest issue I had that day, the one that REALLY sent me over the top, was this slimy, slippery quality to my paint application. Wouldn't adhere to the canvas, just slid. I lost it.
Now, I could have picked up my Open M Box and thrown it like a javelin. Or probably gotten pretty good distance with a "shot put" technique but I went with the tried and true "hammer throw" namely because I was clear headed enough at that point to realize the chemicals I had assembled on my palette would spin off harmlessly in an arc away from me. It was pretty good distance too for someone in hunting boots and blue jeans. Had I had on those little tight athletic clothes and shoes they wear there's no telling how far I could have pitched it. Point is, after I calmed down and had that moment of clarity, I saw myself standing pathetically in this vast cornfield on this vast planet and realized how small this all was so I went over, dusted it all off, stood it up and really thought about why I got frustrated. Analyzed it. Really tried to get to the bottom of it. I was using Liquin as a medium at the time so I thought I could try the next painting without it. Maybe that was it. Bingo, it got a little better. Lesson.
So now when I get frustrated I see it as a lesson. There is something there that is causing the frustration and if I keep my wits I might be able to analyze this and figure it out. Another lesson.
They say pain is the body's way of telling you something is wrong. I feel that way about frustration when I paint. I need to analyze what I am doing and try to fix what is causing the "pain". Sometimes it works and others it doesn't but it is much better than flinging an Open M Box across a cornfield.