Withdrawal and cravings?

I’m genuinely shocked by how hard I’m taking this diet change. It’s only been 3 days without sugar, and I feel like I’m constantly thinking about it. I’m craving sweet treats all the time. Earlier today, I ate 1½ sweet potatoes because it was the closest thing I could get to something sugary besides fruit. Last night, I even dreamed about Dr Pepper. I don’t even like Dr Pepper. I’m a cola person. 😭Please tell me this gets better soon. I know it will eventually, but right now it honestly feels like the end of the world. For those of you who’ve been through this, what helped you get through the cravings and withdrawal period? How long did it take before things started feeling normal again?