I've tried to internalize an understanding that placebo effects are real and can be large, with the expectation that this understanding should increase placebo efficacy without sacrificing my commitment to truth (that is, I don't seek out woo, but I do expect some woo is actually a real, strong placebo effect and I'd like to be able to replicate it myself sans-woo.)
Part of the "mind over matter" aspect of the human body is that a deliberate act is sometimes enough to get things moving. That act in increasing the number of times of day you think about your predicament and the depth of attention you apply to it.
While there's a lot of promise in harnessing that, it's also the source of a lot of superstition.
