Absolutely. My most monumental experience with this was definitely my first day at the drug/alchohol rehab I attended. Here's a small excerpt from my time there:
I was infuriated, depressed, coming down off of Oxycontin, and had never felt more inferior in my entire life. I was escorted to the Phase 1 dorm by a director. There, I was introduced to senior students, as well as my dorm mates. So here I was, a swirling fiery ball of hormones and mixed emotions, in a room with guys who had earned their freedoms back and knew the ropes. I was helpless, stripped of all power, and defeated. The guys on my phase wanted nothing more than to beat me to the point of near death, while the upperclassmen remained relaxed. They'd been where I was, in this slaughterhouse. I was the new guy, the rookie, the prey.
Now, after a month or two, I began to make my self known. So, in the end it all worked out. Yet, I was certainly the "odd one out" for the first two months I was there. I attended the program for thirteen. Talk about having to man up!