I guess if you follow those nine rules for a year - your head will clear up that much - you will realize how pointless this carrot-in-front-of-donkey-style-career-rat-race is and get off!
There are more than 38k plug ins available (https://en.wordpress.org/plugins/). And also from what I have seen so far - there is no extensive (if any) reviewing done regarding safety and quality.
You could get the same or higher value for less money by buying a Samsung f.x.