Translation of dos puntos

Think always positively. There will be very hard times where even the ones who are supposed to be the closest will say things that will disappoint you the most. Listen to them but with caution.
Anyway, I used these two weeks of break in order to fly to a Spanish speaking country and learn a new language. My friends told me that it was a waste of time but I really insisted. It is educational.
We landed at the same airport were we have started our trip three weeks earlier (before continuing to Cambodia), however this time we would stay for two days in the city. We were back in SE Asia.