Ah ok I think 16 sqaures might be the way to go, but I'll test out the different sizes tomorrow. I'll definitely leave my larger blocks to the end then! Considering my accuracy I might end up with completely different sizes lol.
I just tried looking into the setting triangles but as long as it doesn't effect what I'm doing, I'll take it one thing at a time and for now just focus on making my patch squares.
I think when I wake up tomorrow a bit more sprightly I'll look into the strip piecing, for now it's going right over my head.
Thanks again so much for your help! It would have taken me days to figure all this out and I probably would have just gotten it wrong anyway.
I don't doubt I'll be back with a bunch more questions once my patches are done and I have to get to the assembly of the top though.