Translation of conquer in Spanish

And I think it is really good idea for us to writing with each other in Spanish or English. however i am still beginner for Spanish learning. It seems still impossible for me to writing to you in Spanish. But i hope i can do it soon.
Why do you wanna learn to speak Portuguese, it's a very difficult language? I don't know many people who can speak well, except Portuguese and Brazilians of course. I love the sound of it.
A band was playing Peruvian music while we were waiting for our luggage. The altitude is immediately felt: Dark blue skies and thin air, which won't let you climb stairs without having to take a few breaks.