The couple times I've been down Collins to check it outs, it's been packed. I think this is a common problem you'll encounter, people who aren't quite confident/comfortable riding nicer blues and so the greens will be very busy, which is making it a lot harder to learn than if you were on something slightly steeper.
On Cypress, try Panorama or Jasey Jay / Maelle Rickers runs (I know they're blue, but they're a lot more open and not very steep).
On Grouse, try the cut or Heavens Sake to Expo. The cut would be ideal for you for learning, but often has very long lines.
Someone else can probably recommend runs on Seymour.
If you want something that is close but won't be as busy as the locals or Whistler and you have a car to drive, check out Hemlock mountain (near Abbotsford). I think it's a little bit bigger than cypress, but has lots of nice blues and greens and won't be nearly as busy as the locals or whistler.