Hi there, I have a mid-2014 13” MacBook Pro Retina that is increasingly becoming more limited in its functions due to age. It is in pristine condition and I would rather keep it going than buy a new one. I barely know anything about computers, is there any good upgrade options I can do that will allow me to run newer software/iOS versions to extend its life? Sorry if this is a lame question but I have no idea. Thanks in advance.