[cocktailpeanuts]

Yes, weekends/weekdays didn't really matter. I think I did take a long sleep once in a while during the weekends. Then I recover.

Most of the times I would work like this for a 2~3 weeks to a couple of months without being exhausted. But when that does happen, I would take a break for as many days I want. Normally this break never lasts over 3-4 days. (Like I said, it is important that you are working on the right thing. Otherwise you will never pull this off. For example if the main motivation for your work is you're just looking for some easy way to create a side project that will give you good enough passive income, you are probably not passionate enough about the problem and will give up. In my case I truly believed in what i was working on so it didn't make sense to just go slow on it)

As for my day job performance, it didn't really suffer because most people don't really focus 100% at work anyway.

While I was going through this lifestyle, I tried my best to stay disciplined. For example, I would start working immediately after I arrive at work, with no web browsing. And no web browsing while I am working. If you stick to this principle, you'd be amazed how much you can get done in half the time you normally spend at work. Then with the extra time I have on my hand I would take a nap etc. so I don't get too physically tired.