Now then Julia -you know you can get it right even if it takes a couple of goes sometimes. Just look at the railcar and how that has turned out after giving you a lot of worries - so don't give and please move the wall before chucking anything at it.
It must be something in the water tonight! I've had a two steps backwards, 2 steps forward kind of evening! Time to stand back and re-group in the morning I think!
Sometimes, a break from it all is necessary... I'm hoping that the new year brings improvement for me... so I hope your troubles ease too and it all starts to come back together very soon.