To be honest I have had my channel since 2008 but I have only very recently started uploading regularly, I did a few videos a year ago which have now got a fair amount of views but still under 1k, but it would often be months before I would upload again, I either didn't have the time or just didn't have an idea so didn't do one.
It's only been the last couple of months I have really thrown myself into youtube again and started uploading once a week, but I started off with 14 and I had a video that went viral and thats how I have all the subscribers I have now, that video was done a year ago and I had no idea it would be so popular, it was just a random video like my others, but seeing my notifications go insane with comments and subscriptions was amazing, especially as i went from 14 to 700 and something practically overnight.
But unfortunately I have barely progressed from then on, I still have the same amount of subs I had a year ago, but I have only technically been active properly on my channel for a couple of months so I can't really say how long I have technically had my channel as I went years without uploading anything last time I uploaded before the few from last year, was when I was 17 and the videos were so terrible they were all deleted and it turns out i took them off my computer too unfortunately, it was the yougeneration competition last year that started it all again, so maybe it will be better now I have more time, and in a better frame of mind to do them, and also that i'm much more active with uploading videos AND use better editing software as before I started university, I only had movie maker, and I only recently got my camera that I use to film, my old slr didnt have a video option so I had to use my webcam.