Um why go back? If you do - you owe us a case
It is a state of mind and any time limit required is up to you
You've Rung Your Bell, Been Unwound, Go Ride Bike
In this case I do no say WWASD, I suggest you go to Quentin Tarentino film Pulp Fiction and the discussion and reference to Madonna's song Like A Virgin.....
Now if this is a lifetime swearing off thing, I do not advise it. Moderation perhpas just up the intensity!
Worst case see Bernadette Peters performance of I Can Please Myself from Saturday Night circa late 70's. Haha! If you go permanent re-virgination then you run the risk you will be renamed on the BB ... Sister Mirm (as in penguin aka Nun of Christ)