Self-Constraint is a cool software. However, when I end the process in Windows 7 Task Manager, everything is just in vain. Well to be honest, the concept of this software is kind of ridiculous, but it indeed does some help.
It is ideal that when I input the address of the website I addicted, It would block it truly as we imagined, even when we reboot the machine or end the process.
Finally, I get a neat solution, I just invent a password that is so complicated and random that I would never remember it without look at it. Then, I copy it carefully on a paper, lock it to somewhere away from my workplace and home.