It's difficult to know if a diet is helping, especially when you show few symptoms. If possible, tracking test results may help identify a trend in crp, etc. over time. But, as said above, I would be very cautious about eliminating or foregoing medications in place of diet.
When my son was diagnosed, we met with a dietitian who was part of the IBD group (assigned to us because my son did exclusive enteral nutrition to induce remission) and her explanation was that while specific foods will not cause or trigger flares, they may affect symptoms, positively or negatively. IBD is such an individual illness and sensitivities/intolerances will differ from person to person. If you are intolerant of spicy foods, eating these may aggravate symptoms; alternatively, eating a low residue/fibre diet (or trying enteral nutrition) may help calm down symptoms during a flare. The trick is finding the foods that help/hurt your symptoms. I'm not sure that any one diet plan can help everyone.
She also believed that often people will, in fact, feel better when following these diets (SCD, paleo, etc.) but that much of the credit goes to simply eating less/no junk food and fresher, non processed foods that are part of these diets.
I am, however, a big believer in supplementing a diet with nutritional shakes. My son did very well with exclusive EN (6 weeks formula only, no food) and was able to reach clinical remission; his maintenance treatment then continued to be supplemental EN (1/2 dose, 5 days/wk with a regular diet) for another year and a half. Unfortunately, while this greatly reduced and controlled his inflammation, it was not enough to eliminate all inflammation, hence he started remicade. It was definitely a very hard decision (I was quite happy to have my son on a nutritional formula only with no side effects!

), however, the risks of undertreated crohns are very real and we believed this carried greater risk than the medications. Although he is now on remicade, he continues to drink 1-2 Boost shakes per day and I believe the nutrition he gains from these shakes have helped keep him healthy since diagnosis.
Good luck!