networking intrest

I’M 17YRS OF AGE AND I’V JUST LEFT HIGH SCHOOL I WANT TO LEARN EVREYTHING THERE IS ABOUT NETWORKING SO I CAN BECOME THE BEST .I WANT TO BE ABLE TO BUILD,TROUBLESHOOT,DESIGH AND ADMINISTRATE A NETWORK PERFECTLY.WHAT IS A NETWORK ENGINEER,NETWORK ANAYSTS,SYETEM ENGINEER,SYETEM ANAYSTS.I ALSO NEED TO KNOW WHERE TO BEGIN AND WHERE TO END .