When people start a blog, Let’s Play or whatever they normally start doing so because they enjoy it and not start simply for the sake of profit if you are lucky people will notice what you do and join you with what you are enjoying doing. If you are unlucky then you either carry on doing it because you enjoy it or give up and move to something else.
Over time you will start to get better and better (only have to look at Tweaked for your Pleasure’s archive) and with this, you will aim to become better and better. This could mean a better writer, editor, gamer and whatnot but regardless you will aim to improve on it and this is what will define you.