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If it's hard for you, try 14/10. You should choose the hours according to your daily schedule and your eating preferences. Some might eat a lot in the evening, so they finish later, but move the breakfast further, to 2pm for example.

Okey, thank you for recommendation. If I need to, I can ask your help?
In these hours, when you don’t eat- what I can to do?...I think about water or some juice?