Translation of cuartel

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.
I have your letter sitting on my desk. But, in the last 2 months I have been working on some projects which were very time consuming. I will not be able to start anything new before October or November.
We returned before dusk, as we were afraid of not finding our ship in the dark. Once on the ship we decided to go for night swimming again in the open ocean. A few women on little boats approached us.