I currently have a Secret clearance. When I was 17, I voluntarily checked into a 6-week inpatient alcohol rehabilitation program, which I successfully completed. I have not had any recurrence of that issue since (I am now 50). The issue as it relates to my clearance is that when I filled out my SF-86 for the Secret, which was the first time I had ever applied for a clearance, I asked my FSO at the time whether I should disclose that on question 24.3. (I was kind of incredulous that I would be asked to disclose something that had happened so long ago before I had even become a legal adult.)
She advised me to omit that information. Now I am being asked to upgrade my clearance to a TS and of course realize that omitting that information was the wrong way to go–I got bad advice. How do I address this on the new SF-86? And, more importantly, am I completely screwed here? Any advice is appreciated. Thank you!