I'm a 5' 6'' Teenager and I'm considering...
I'm a 5' 6'' Teenager and I'm considering buying this tent but I'm wondering would it squeeze in a teenager of about the same size?
If I understand your question correctly, you want to know if you can fit two 5'6" people in this tent at the same time? If that is the case, it would be very difficult to fit both people in there. It would be VERY tight. I'd recommend against it.
On the bright side, this is a great 1 person tent!
Definitely not a 2 person tent. I am 5'9" and its very snug with me and my 4 year old son in it with me when we go backpacking together.
Only if the other teenager is your very petite girlfriend :)