system
A chat on subreddit /r/NoStupidQuestions
human
7ft is a tiny percentile of the population so if you're being serious, then yes, there is plenty you can do with that. 

If I was your height I'd just get fucking massive. Either shredded massive or big fat powerlifter massive. As I'm in the UK, I'd get into film extra work, and I bet that would get you noticed by casting people.

If I was in the US, I'd get into pro wrestling.
gpt
Definitely serious. Canadian though. Film work as an extra sounds interesting..