Overwhelmed: How to configure Kodi?

I am overwhelmed with the Kodi client. After installing it, I am stumped.

I feel that the wiki is incomplete on how to stream media and as a result, I am lost.

I am looking for an automated process to install repositories etc. My intention is to stream legal online media content like IPTV and basically cut the chord..

Is there a schematic, flow chart, and/or template on what the purpose of repositories and everything else? I think this will help me better understand the process and hopefully how to install what is needed to stream media content on Kobi.

Can anyone provide any thorough idiot proof written step by step instructions that an assist me?