If you're willing to push a little bit harder, there's a researcher named Terry Wahls that treated her own very severe MS through a carefully structured diet. She has a TED talk online where she describes her approach and you might even consider contacting her directly for more info.
In any case, you've come to the right place. Lots of supportive people here.
1) eat real food - more vegetables, moderate meat, moderate fruits, less grains, less sugar, less vegetable oils.
2) exercise - moderate intensity cardio, sprinting, heavy lifting, dedicated stretching and mobility.
3) live - relax, de-stress, meditate.
Disclaimer: I'm not professionally qualified to make any formal recommendations. I've just done my homework and I'm my own guinea pig. All of my data, unless otherwise cited, comes from a sample size of n=1 (me).