Welcome to Jane Berry via Bloglovin.
I am now halfway through my knee blanket for next winter. If I remember correctly, I have learnt treble, double and single crochet (UK versions):
I think it will measure around 50" x 50" when done and from a wool point of view, have cost me £10.50 less any wool leftover once finished.
I am quite pleased with it although yesterday, I had 3 rows sewn together then realiased the bottom one had been attached at the top so had to unpick it:(