According to Elaine Gottschall, if you haven't seen improvement within about a month it might not be the diet for you. However, it took me 2 months to see improvement. So it's up to you if you want to keep trying it. Did the raw vegan diet help your condition?
Here's a video by Crohn's Boy where he talks about common mistakes people make on the SCD diet. I found the same things to be true for me: