Fair point—sleep and time-blocking are probably the highest-leverage interventions. I've been using pomodoro on and off but find I still need something to get into the focused state, especially on days when sleep wasn't great.

The caffeine question is interesting. For me it's less about needing stimulation and more about managing the side effects of what I'm already using (coffee). If I could get the alertness without the jitters/anxiety, that'd be the win. But you're right that fixing the root cause (sleep, focus discipline) is probably more sustainable long-term.

Curious—do you avoid caffeine entirely, or just use it strategically?