I Warned You This Might Happen

I finished my Sea Aggie Mom socks, and since the Third Quarter Craft-A-Long begins Thursday morning I decided not to start another pair of socks immediately.  Instead I went to the stash and dug out a partial skein of The Loopy Ewe's Solid Series in Robin's Egg Blue.  I grabbed a 3.25mm hook and started crocheting the Mable doily (free pattern).  This is more advanced crochet than I've ever done before, but it's still one stitch at a time, one round at a time, so when I get confused, I just go to YouTube.  Once I figure out what to do, I just crochet happily along until I find the next new stitch that I don't understand.  

I've got about seven or eight rounds left to go before I'm finished, and I am enjoying it.  Since I'm making it in fingering weight wool instead of cotton thread, I'm totally guessing on the hook size.  I don't know if I'm using one too big or too small.  I might make a second doily in a different hook size just to see which one I like best.  Do any of you know how tight or loose these things are supposed to be?  I really have no idea what I'm doing here!