I always sleep extremely late, even when I force myself to go to bed, I’ll read or check mail or do whatever things except sleep. How can I fix a sleep time and get good rest every night?

Mille Poulsen
You can do these things all together to achieve the best results you can get:
1- get less amount of sleep the night before, force your self to wake up early.
2- do a good amount of physical activity such as exercising or house deep cleaning.
3- put your phone in the living room before sleeping and use old style alarm.
4- it might seems funny but try to count it might help sometimes.