I find intermittent fasting to work for me too. I do the same thing, stop eating by 8pm and don't eat the first meal the next day until after 12pm. Well, I've always been a skinny guy, and I probably have the skinny gene or something, because I could eat a lot and not gain weight. But going on intermittent fasting actually helped me with my energy level. I feel so much more energetic, awake, and alert ever since I started it about one and a half years ago. I'm not very strict on it, I would eat breakfast on Saturdays with my friends after our morning walk or sometimes cook Sunday breakfast for my kids and eat with them, but I'm pretty consistent in following it during week days.