@thilee,
Thil, I think the original was meant to say "..living..," in which case,
I was accustomed to that form of life, whereas "I used to live in town" means I did live there at a time in the past
It's all in the context, Thil. "I am used to live in town" means tho my life might have numerous other uses, the one presently in force requires me to abide in the city