CVSA for sheriff's office position

[coopersmyboy]

  I, like many others, am nevous about taking a VSA. I would love to tell them no, but I am required to take it for the job. Honestly, my past isn't all that bad, but I do stress and overthink. My main issue is that I have to fill out a questionaire first...and I have smoked pot once (3 years ago) and drove drunk (2 and 3 years ago leaving situations that I felt would've led to possible bad situations like rape). Unfortunately, only being able to give dates and how many times on the questionaire, I'm not really able to explain this. Therefore, I'm wondering if anyone has suggestions on what I should do. Also, I've only done a little research on the VSA and haven't found anything on what type of answers you're about to give. Any information is appreciated.
Thanks.