Replacement for MacBook Pro

REVISED.  I'm about 95% homebound because of oxygen used 24/7 for emphysema and my computer is my window to the outside world.  I use it 9 or 10 hours a day.  My MacBook Pro is dying a slow painful death.  Apple laptops are very expensive to repair, so this will give me a fresh start with a refurbished model, still under warranty.  Any and all help is appreciated, with any overage going to the Georgetown Animal Shelter.  Thanks, friends.