A few things I have noticed since starting - sourcing the materials is great fun and very addictive (every time I pass a charity shop or secondhand book shop i’m in there)
Collage can be anything you want it to be. I once asked Susi what one of her collages meant and she shrugged saying ‘It doesn’t have to mean anything.’ I like that!
Finally if you think you have a burning desire to start a new hobby - go for it. I’m having great fun with collage, it’s a great stress reliever after a hectic day. Each time I sit down to create something new, it’s great fun to get lost in my own little world and see what the end result is.