Translation of desde luego

I congratulate you on your move to become a private Spanish teacher. People need to believe in you and the most important thing is that you need to believe in yourself. It won't be easy at the beginning.
The place was amazing and very interesting although tourists ruled here. At noon we continued to see a waterfall called Agua Azul, which means Blue Waters in Spanish. It was a two hour drive.
On the way back I visited a private beach resort. I just wanted to see whether I could get in and it was not a problem at all. The resort belonged to some club on the main land near Cancun.