It’s very easy, you can do a few simple things and they will definitely help you.
And here are these things:
Watch your favorite movie. But do not choose a kind of romantic drama movies, they will make things only worse. Watch a comedy or an action film, it will certainly improve your mood. Even a horror film will be better than a dramatic one.
Call or meet your friend. Perhaps they have some interesting things to talk about (they always have!). Such a conversation won’t let you think of bad things.
Become an optimist. Even if you don’t think that your life is awesome, simply make yourself think that way. If it doesn’t help, remember that there are people that are in worse situation than you are. Don’t fall in despair, your bad mood will be gone and everything will be OK soon again.
Make a party. Or at least some kind of it. Even a preparation to it will improve your mood. Here is a simple rule, that if you are engaged in something you won’t have time to get upset.
Have sex. It’s an excellent way to improve your mood. The only disadvantage is that there isn’t always a partner for it. And if you decide to have sex with a stranger, it will be an extreme already.
Eat something delicious. It will help, but remember that eating too much can cause health problems. You don’t need to get overweight, do you?
Listen to a nice music. Music is for soul, it will help you to relax and to forget about bad things. But remember, do not choose a dramatic music, it’s the same rule as with movies.
I’m sure that if you do at least something from this list you’ll fight your depression and your bad mood.
Feel free to share here your own ways how to improve mood.