I used to eat Mcd's at LEAST twice a day. My hubby and I went cold turkey in August of 1998 (yes I know the date!). I have not so much as touched a fry since. No idea what is even on the menu... It CAN be done! Rather than fast food I have "instant" food in my car at all times (mostly bars - both granola and other meal types) because sometimes you just NEED to eat.
I miss other fast foods and sometimes partake in a quiznos sandwich or subway but it is rare (like twice a year). try to think of it as "not food" as in it is something you hate. For example I do not eat seafood (allergic) so I try to think of fast food as all fish