You are NOT "in over your head"! Blocks are NEAT! I really like it! I've done the same thing with Izzy's block and another(can't remember who). I cut, sew, rip, sew, threw piece in scrap bin, re-cut, sew. *sigh*
SO when you feel frustrated, eat CHOCOLATES! :)
BTW, We are all going to LOVE whatever you create! :)