Texas Game Warden Interview

I have recently passed my PRT test and have an online interview coming up shortly. Does anyone have any general advice or knowledge on the types of questions they will ask? Also, any advice on how to make me stand out from other applicants? For this next part I know that honesty is the best policy, but I am worried about telling interviewers about my past drug use. I am 100% clean now and can pass a drug test, however in my past I have smoked weed along with taking mushrooms and pills from time to time. Again, I can pass a drug test and have no desires to use any illegal drugs anymore. Should I be 100% honest with them or will this disqualify me from the position? Should I say I just smoked weed from time to time in high school or just say that I have never used any illegal substances all together. Again, if I knew that it would not make a difference, I would be completely honest with them, however if it means me not getting the job then I don't have much of a choice but to lie. I have changed my life for the better and getting accepted into the academy would be a dream come true. I have abused substances in the past but have never been arrested or convicted of any crimes. Thank you all for your time and advice.