Sounds like you need to develop a hobby or two. I also tend to overwork when I have nothing else to do as I'd rather work than zone out in front of the TV. But this hasn't been a problem as I'd rather spend time on my hobbies than work... so end of work day is when I get to switch to my hobbies.

To put it another way, what I hear you saying that your work is the most interesting thing in your life right now and so, of course, you spend most of your time doing it. If you had other things in your life that we equally or more interesting...

I actually am writing a book and I have told myself that I should work on it after work, but I have failed miserably to switch to that hobby after work :(

When you consider that all you have to do to acquire (not master) a skill is get past the total beginner phase it actually makes quite a lot of sense to jump to something that catches your interest as soon as possible. You can use that newfound interest to break through the first few weeks which are generally the hardest. Basically catch the spark of curiosity and go start a fire instead of letting it vanish.

Okay long story short here is my advice: Just do it. Do it every day. If you find something more important and interesting then do that instead.

Of course it is even better if you have found something that is more important to you than everything else. There is no shame in doing the same thing for years.

Thanks for the advice. I totally won’t be able to achieve it if I don’t create these kind of habits.

Unless you just really love writing that could very easily just be a second job.

I do love writing, but technical writing actually takes more reading/researching and revising chapters than actually writing new chapters. It makes the second job quite hard :)

Right there with you buddy!

> it's mostly because I don't know when to stop the day

Of course you do. Stop at 8 hours.