I'm sorry but I've read it all again and I can't see anyone criticising the OP.
We are criticising his training. If any of mine have come across otherwise, my apologies.
On a side note, but related. I once had a notion to build a 3D model using blocks of translucent plastic stuck to the Scottish chart to physically show the airspace shapes. You could then poke a model of the aircraft under/over the shelves and see how it all fits together. Never got round to it but I thought it might help.