I picked up drumming on my own about 8 years ago, and only had a chance to use a drum kit once a week (at church). In between I was just tapping my hands like a madman on the train to school every day. Haha.
I must say that although I drum fairly well now, I missed out on a lot of basic techniques and rudiments and struggled to do things my own way. So definitely with the help of all these Youtube videos nowadays you can do a lot better.
As always, practice, practice, practice. And don't stop practicing when you're away from your kit.