Do I do every single step? this seems a little unneccesary and it doesn't seem like it will help me in total.
Take your machine to a local PC/Mac repair shop
If you have a hardware problem, then take it to Apple and get their opinion first (and if under warranty or AppleCare)
We can only assist others who can assist themselves, some are not "into" computers and some just need hands on assistance we can't provide here.