I was told some years ago when I regularly played guitar in Church, that the banjo was an instrument of the Devil (when I used it to accompany Abide with Me) and must not be played in church. I think the cleric who said this had probably had a bad banjo experience at some time. Anyway, I retorted "Why should the devil have all the good music" and continued playing.
If obsession is really a problem, I suggest group therapy (AA type) where the discordant sound of lots of banjos in different or supposed normal tuning should help. On the other hand, like me, you could decide to accept the problem and live with it until old age finally catches up with you ( about 25 if you are lucky)and restricts you playing. Your banjo will then make a fine wall mounted ornament which will enable you to relive those heady days when you hadn't a care in the world except how to safely transport your banjo from one gig to the next.