Slightly off topic (I mean, other than being outed as being from Darkest Peru, obviously)
I think I’m responsible for about 70% of the derailments in this thread 
Quantum that’s always the case! If you see your ends in as you go, you end up needing them or needing to frog it. If you don’t sew your ends in you end up with hundreds and the project sits unfinished. Love the colours. Don’t worry too much about the edging and border stitches, a border neatens a lot of things up. Most crochet projects you can spot your mistakes (usually after finishing the project) but other people won’t be able to. Other crocheters might notice if they look close but they won’t say anything in case you go and spot a mistake on something they’ve done 
sophs there’s a granny square blanket which is different sizes of granny square, so you can just do what you can fit in. Some might be big squares and some might be tiny, you then just have to work out how to piece it together.
I’ve not managed to do much on my cowl. I’ve set myself up with crochet nests around the house, so whenever DD is settled I can crochet no matter which room I’m in. My cowl is in our bedroom nest so I’ve managed 2 rows today. I might need to move it back downstairs and a different project to our room then I have a hope of finishing something.