Resolved questions
Is it difficult to find anyone in Brazil who speaks Tupi-guarani language?

Hello, I think learn Tupi Guarani a challeng, but here's a help:
http://www.funai.org.br/
I think there's people that can healp you.

I am Brazilian and ive never ever met somebody that speaks tupi guarani and i might be wrong but as far as im concerned only indigenous people speak. So theres no use learning unless you are fond of indigenous culture.

it's almost impossible.
in paraguai is oficial language.
look this site, maybe help:
http://lingalog.net/dokuwiki/ressources/guarani/material

eu falo um pouco,a lingua tupi se chama nheengatu,'a lingua boa' em tupi.

Almost impossible, because only some Indian speak.

Será bastante difícil encontrar alguem que fale o Tupi-Guarani. Na realidade você encontrará gramáticas e dicionários em sites http://www.areaindigena.hpg.ig.com.br/dicionario.htm; http://www.filologia.org.br/anais/anais_iicnlf45.html... todos em português. Se precisar de ajuda estamos aqui.