After a 12 hours flight or so and a few more hours in transit I arrived at my hostel in São Paulo 🙂 The hair cut is paying off, 10 minutes after the shower my hair is almost dry. 
I learned now that it’s never too late to get the desired seat in the plane: I asked the crew to switch and luckily the seat of my dreams was free, however, no matter what seat, I just can’t sleep in transport. Going to get a Sim-card and food now.