Translation of geknackt

We spoke on Friday noon, I got your details through Vocabulix friends. That is similar to what you're teacher is using. It would be best if we could meet or communicate through phone or email.
How could I get better in Spanish if I had to eat by myself. Impossible. The next days we always ate together and sat around the table for hours discussing politics and the lives we were living.
I called the Hilton hotel in Cuba and asked them whether it was worth coming or if they suggest to postpone the arrival. Their response was clear: Don't come unless you really have too.