Hi Lydia, wow this is first opportunity to reply to anything as I've just joined only minutes ago. saw your question and thought, why not give you some help. I'm in Australia but imagine you would use the same gear as I do, though as I'm now completely digital haven't rolled a film for quite a while.
Using Patterson plastic reels are somewhat difficult to load a 36 exp, but the others answers you've received are applicable. I always used stainless steel reels, loaded from the middle of the reel. A little difficult if you've never done it before, but with experience the best way to go and much faster [leave the sticky bit on the end of the film and that can then be stuck on the back when you come to the end of the roll] I have over many years loaded probably thousands of rolls this way. Trust this helps. regards, Philip.