I think the T-mobile description of you seems accurate from what I know of you.
Many people are a good mix of introvert and extrovert. People who are perfectly balanced are probably the best adjusted people. Those on either extreme have some extra challenges.
Bill
Seriously though it may answer why despite being fairly constrained in where I can go and do due to caring for my father and despite being tied to home most of the time when not at work I am fairly content and happy.