"Work hard and you'll succeed" – But how does that actually work?

Hey everyone,

I always hear people say, "Work hard and you'll achieve anything!" But in reality, I feel like after just 30 minutes of deep work, my brain is already fried, and I need a break. I don't understand how people can grind for 8+ hours straight on a project without completely burning out.

Wouldn't it make more sense to work in smaller, focused sessions every day rather than forcing yourself to work long hours, only to hit a wall and feel mentally exhausted for days? I personally can't focus on one thing for more than 2 hours before my brain shuts down.

How do you guys approach productivity? Do you think pushing through exhaustion is really the key to success, or is smart, consistent work more effective?

Looking forward to hearing your thoughts!