I have never done well with online dating. I know people who have, but their personalities are much different to mine. I understand your fear completely.
I also never understood the "It'll come when you aren't looking" thing, either. I haven't really been looking for years, and I haven't dated seriously in years. I don't know that I want to, because for me it tends to end up to be more trouble than it is worth, but there is always that hope/dream in the back of my mind that I may end up paired off with someone. That I'll be an old lady drinking tea and reading with someone while our two cats sleep in the sun