Follow any of these ten easy steps to rekindle the flame!
1. Take a break, force yourself to give it up for a minimum of ten days, after a few you should be craving it, and if you last ten days, don't mass watch it take it in small strides and you should remain loyal to what ever your watching.
2. Quit on going series, Naruto, Bleach, Death Note, these may be good, they may be great but wait for a few eps to come out or you'll find yourself always waiting.
3. The power of Testostorone, greater than Chakra, ki, chi, reiki, furiyoku, reiatsu, etc etc. Watch a show (especially for the men) about chicks kicking butt, stay away from that Sailor moon, mewmew, wedding peach crap, watch something like Gunslinger girl.
4. Watch an old fave, short ones are good, FLCL, a short OVA works wonders to remind you of why you love anime.
5. Rewatch your favorite eps, seasons, or archs of your ALLTIME favorite anime, makes you want to see if it can get any better than that.
6. Fighters are good to watch, they get you pumped and no matter how stupdid you'll want to keep watching these. (Fighters especially the martial arts type, Dragon ball, YYH, saint Seiya etc)
7. Get pumped with a sports anime, they work. Slam Dunk, Prince of Tennis, Eyeshield 21, and Major are all good for getting your passion back.
8. Good movies can help as well, not an overrated movie like detective Conan 1-3123123 watch something like Kiki's delivery service, howls moving castle etc.
9. Stay away from graphic novels and/or manga, reading is dangerous, and can cause severe bordem.
10. Star this one. Stay away from mainstream animes, the better people say they are the more likely that if you don't like it, you'll be really mad.
Follow any of these 10 steps, or all of them and you should get back into the swing of things. Enjoy.