Old Nubby needs tv firestick help

I installed kodi/amazon firestick on Samsung smart tv ok and all seemed ok. I keep it unplugged when not in use on advice of others who say amazon can disable it when auto updating it. (?). Now when turning it back on all I get after home screen loads is amazon programs, recent, black screen that now is kodi. Starting kodi I get a blue screen of bubbles and a lot of selections. That seems okay so then I go to programs or videos and get a drop down menu of files or add-ons. If I go to files I get a submenu that shows me playlists and there are no playlist if I click on add ons I get a menu and brings up a whole list of what appeared to be movies all of which are in black and white old and not what I’m looking for I would just like to get back to the original Kodi load updated to the latest version if I have to do that manually and then find a station that would provide NFL football games on local a drug test and try to work from there. Do I need to reload Kodi? How do I know the difference between loading illegal Kodi program or a bootleg illegal Kodi program that I don’t or shouldn’t have question I appreciate your help in advance kindly somebody help an old man figure this damn thing out. Thank you very much

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