I'd suggest that you come up with an excuse to wear it out, and set yourself a deadline. You could wear it out to a Highland Games, or to a Scottish music festival, or you could choose a day that is "Scottish themed" and wear it then.

For example, you could say, "I'm wearing my kilt out on St. Andrews day."
I know it already passed, but it works as an example.

I first wore mine in public for Pascha (Easter). Then I wore it again when our Bishop visited our church. From there, it's been a steady progression to wearing a kilt at least once a week.