To an extent, yes. It's similar to managing an emotional issue, or something like an anxiety disorder; some techniques can help lessen the effects, and allow you to control them rather than the other way around. The underlying cause can also be treated if necessary, but that would probably be impractical here, at least in the short term.

[It's definitely a personality trait, but the more detrimental manifestations of it can still be toned down even if it's often a bit of a struggle to do so. Lance definitely knows that from experience.]