You are confused because you are a newbie but I can honestly say that even me is not so aware of what is happening in the technical side of Bitcoin as I am not an expert with it but what I only understand is that there is an original Bitcoin that must be trusted and supported by us who uses it and believe to its future as a revolutionary digital currency.

To answer you question about LTC if Bitcoin will be implementig Segwit2x you better go to this thread https://bitcointalk.org/index.php?topic=2095328.0 and maybe you will be enlighten.