Stuck at 0% [waiting for headers]

Try to change the server selecting update manager, definitions,downloading from, then select a server more near you. and then try again.

Edit: see this link on how to add it by editing sources.list. How can I get apt to use a mirror close to me, or choose a faster mirror?

The easiest approach consist of following commands:

sudo apt-get clean

&

sudo apt-get update

then

sudo apt-get install <package_name>

Cheers

Let me know if it works