What do you guys eat?

Hi everyone, so I just started IF (18:6) and my first weeks went great. I’ve been eating healthy (fibers, protein lots of veggies etc.). But tbh, you cannot tell me you never eat something sweet or a little bit fattier foods or carbs and that for like what? 5 months or even more😭. Do you really have to only eat extremely healthy to lose the weight? I’ve seen people saying you can eat whatever you want during your eating time . Then there is others who forbid any carbs. What am I supposed to do? Any tipps?😅