You’re waiting for a train. A train that’ll take you far away. You know where you hope this train will take you. But you can’t know for sure. Yet it doesn’t matter. Now, tell me why?
‘None shall pass.’ - ‘I have no quarrel with you, good Sir Knight, but I must cross this bridge.’ - ‘Then you shall die.’
Compromise a Joomla CMS account via SQLi, practise cracking hashes and escalate your privileges by taking advantage of yum.
Enumerate Samba for shares, manipulate a vulnerable version of proftpd and escalate your privileges with path variable manipulation.
It doesn’t matter how many times you get knocked down. All that matters is you get up one more time than you were knocked down.