Comment by tuyguntn
> should be coached out
No, it won't work. Biologically, 25 years old without a family responsibilities will not get it anyway.
If you are 25 years old, single and your friends are similar to you, what would you do? Most I know are working 12-14 hour/day, because they eat breakfast, lunch and dinner at work.
Worth noting that this basically doesn't work long term, and is much easier to maintain if it's different work (a job and a new enterprise).
You'll notice that you become less efficient over time. I recommend taking a long weekend and coming back and keeping to 8 hours. It's a great discipline if you want to go further in your career.