I'm currently trying to figure out my direction. It's not working. Be better than I am and have a plan, a direction for yourself and your endeavours. If you'd like to talk about a huge range of things on your blog then plan accordingly. Otherwise, if you would like to set up a few different sites make sure that for every step you take you understand that you are actually trying to end up somewhere in particular.
Don't be stupid. You are better than that.