Translation of rendirse

My parents were Italian, but the first language I learned was Spanish, since we lived in southern Spain. Very close to Gibraltar. When I was older, like twelve I moved with them back to Lucca in Italy.
I think that working with you in this case would be just by Skype because it will be 8-20 sentences per month and always spontaneously like today's message which was 'Another five days until the weekend...'
I want learn Spanish because of my girlfriend from Guatemala. She is from Latin America. And of course I want improve my grammar too. I like to hear it, but speaking is still hard. Hasta Luego.