Same... It's like 20 minutes of focus and then I need a nap 🤷♀️ When I was younger, I'd just inhale energy drinks, but the crashes just kept coming faster and faster.
It did this for me until I hit 30, then it just made me up up up and not hungry, now past 50 it feels smooth and I can eat but can't have it in the evening because it will keep me from getting sleepy!