Translation of sostenible

I came on time and two hours later I arrived at Tuxla Gutieres. I was always suspicious here and I never knew whom to trust. Somehow I got to the airport a few hours too early but this is better.
Please write me from your home as soon as your are back. My Spanish is better than that of most Americans, but my English is worse than that of most people here. It is a strange position that I am in.
On the way back I remember watching a Diego Armando Maradona movie in the car's portable DVD player. He was praised as a Saint in this movie. I took it as a good preparation of thing ahead in Buenos Aires.