It’s not me it’s all YOU, you have done all this work and it is incredible that this is your first project. You are a brave and competent lady, well done you
As for the little oops with your hat, you can leave it in and call it a ‘design feature’ or you can tink back, this video shows you how:
We all make errors, even me
Yesterday, I had to tink back 24 rows with 350 stitches in each row and all in lace with added beads!!
It had to be done - it got done!!