Well I said I would and so I did!!!
I started another blanket.
Having made the first one I will tell you know that I learned a LOT. The one thing I did pick up from mistakes was that I kept losing my place - my starting point. This is why the yellow marked square (bottom right) has a thread running through it. It's to tell BC3 that that's where square 1 is.
On the last blanket I had no idea where my starting point was after a while so I thought this idea or marking it with a strand of thread which I can later pull out may help.
Again this is the site I used to help me and I still regularly check it out to see whether it's a square one, square 2, square 3 etc that I need to do next and WHERE!!!