I would like your opinion on this!?

Ok so I have a friend who drives a 1999 f-150 and he has had the truck for 2 years now never changed the oil, brakes, never did a tune up and so on. He has never had a problem with any of his trucks he's ever owned. Well I been having a 1998 s-10 blazer for a year now. when I got it, it ran perfect. I change the oil every 3000miles tune ups at 40k and so on. I take realy good care of my vehicle. Well I have so much problems with mine now. And he doesn't have a single problem. I honestly do not get how this can be lol. Its bs. I figure it's just my luck.