Complete with should, shouldn't, ought or oughtn't.

Anne says :
A good night's sleep is really important and yes, it can affect the way you look and feel. Here's what you can do: First of all , you (1) ... try to relax before bed. Listen to music or read a book for ten minutes. You (2) ... to go to bed late, even at weekends! You (3) ... try to go to sleep and get up at the same times every day.  You (4) drink too much tea, hot chocolate or coke. They have a lot of caffeine, and this can keep you awake. You (5) ... to be careful what you eat before bed. You (6) ... go to bed hungry but don't eat too much, either. If these don't help, you really (7) ... to talk to your parents about seeing a doctor.