The 19-year-old does admit to having discovered much about himself during what has been a first qualifying adventure as a full international.
"This is my first campaign as an England international, so I've seen how demanding it is, how challenging," Chamberlain told the Daily Mail. "You think it lasts only so long but is so stretched out. You have to keep your motives as they were every time you meet up.
"That in itself can be a real challenge but the manager gets our heads together really well and drills into us what he wants. As soon as we're back they just need to say a few things and we're all on the same page. The sooner everyone is singing off the same hymn sheet, it stands us in good stead going into games.
"It's been that way, but Montenegro have shown how special it is to get to major tournaments. It isn't going to be a walk in the park, even for a nation like ourselves. We knew that we would have to raise it for tough games, tough environments, different conditions, you have to be switched on 100 per cent all the time.
"What helps me personally is that I have a lot of friends from the other clubs as well as the Arsenal boys. When I go away it's good to be with the likes of Danny Welbeck, Daniel Sturridge. Even the experienced stars I can count as friends."