This kind of bedtime meditation can help you eliminate negative emotions very effectively, referred to as the "four 7-second" breathing method.
In the first 7 seconds, inhale deeply with your stomach and feel your body, from toes to knees, to crosses, abdomen, shoulders, arms and head. Imagine that every part is full of sunshine and vitality.
Hold your breath for the next 7 seconds and imagine that every part of your body is gradually quiet and relaxed. ...
Exhale for the third 7 seconds, and imagine that the body is slowly releasing all negative emotions, all garbage and dust!
Hold your breath for the fourth 7 seconds.
Then, if you are not asleep, repeat it until you fall asleep unconsciously. ...
I hope this method can help everyone!