I got this lovely stone box a few weeks ago and thought it applicable. I never realised how applicable until this border.
I had problems when I reached the 2nd corner before we went away. I had thought the colours had reversed (which they had) also the direction of the longer and shorter corner pieces (which hadn't). I also hadn't taken into account the fact I was doing a mirror image of the original drawing (big duh! and waste of time) and then I took the 45 degree seam in the striped fabric and got the stripes going horizontally instead of vertically.
But I kept going and now, quite literally I've turned a corner, LOLS.
I've just found the "Never never never give up" is a World War 2 quote from Winston Churchill. It still applies to me in my little way.