Everybody has to work hard to create a channel.
The biggest Draw Card is You. people subscribe to you. Not your video.
Think of your market, youtube is a 1000's of little markets in a Metropolis of Shopping Centers
Gaming is huge on YT, it is everywhere in this Metropolis of Shopping Centers
You need to be entertaining right from the start to try and keep people watching.
I dont know film your self squash some big water Mellon with a hammer, get some mates and get some cheap blow up hammer and pretend to be part of a game. Idea's
Do not expect your first idea to get more than 100's hits, but keep working on it and you might get some traction.
Try to promote your self on a few websites, you do not need to link your video's but have your channel in you sig. Dont post random crap, post info that is relevant.
SEO in youtube is important, but without a good video to hold viewer time you will not get up the ranks.
Yes getting big on youtube has to do with luck, video quality & and who you know.