I think I've skewed it by having NO supersitions, rituals (and let's leave fetishes out of this!).
If it's an open survey, I would've thought that rather than skewing the results, your answers will be a significant part of showing that many (most??) people don't have silly superstitions.
One or two niggles with the way the survey is structured, e.g. there were a fair few "not applicable" in there. (As Wilkie says, many questions are geared towards team sports or make assumptions about the structure of the competition) but it's interesting that there is a question about whether you think the superstition really makes any difference; on the face of it, an odd question, but in reality I'm sure there are many rituals that people go through simply because they are comforted by routine when trying to deal with nerves, etc., but knowing full well that superstitions are a bit silly.