Winter is harder-- I think we are hardwired to crave more calories in winter since in times past you needed those extra calories to stay warm and to last until spring.
I guess I'm sort of lucky in that the natural non-sugar sweeteners like monkfruit and stevia and to a lesser extent erythritol taste ok to me and don't seem to give me problems. I learned that I can't handle inulin in more than minute quantities (that's the sugar that is present in things like jerusalem artichokes). They are all natural sweeteners that people have been eating without side effects for centuries. Most people don't know about erythritol, but it is found naturally in things like fruits like grapes, peaches, pears and watermelon. It's also found in mushrooms and fermented foods like beer, cheese, sake, soy sauce and wine. On top of that, your body creates erythritol too!
The keto diet doesn't encourage artificial sweeteners.
The other thing I've found is that the longer I'm on keto, the less I eat sweets. One of the good things about keto not being real mainstream yet is that it's not easy to find keto-friendly desserts ready made; so I have to always make them from scratch. That cuts way down on how much of them I eat, since I don't usually have the time and energy to bake some up. I read once that the best way to lose weight is to eat absolutely anything you want, but you have to make it completely from scratch!
@flowerbug I agree with you about the frozen strawberries. I also will open a can of diced tomatoes and drain them to use in place of fresh tomatoes in winter; the texture may be a bit different in those foods, but the flavor is a heck of a lot closer to summer fresh.
Back on track with my diet-- I've lost the weight I had gained (as I thought, it was primarily water) and I'm feeling a lot better again. I'm making some Molasses cookies for the Lion's meeting tonight, and Slow Cooker Chicken Enchilada Soup with some of those corn and nopal tortillas for dinner.