purpose to melody

I arrived at CFB Halifax last night.
I'm living with 12 other guys.
I thank God for one other guy in my block who is a believer.
My day is from 7:15am to 3pm. I have lots of free time to sleep and make my muscles bigger.
There will be lots of drinking and partying. Please pray for me, that I will guard my heart and mind, but at the same time not be passive and keep to myself, but take every opportunity to be a witness and live out my faith.