I've been really unhappy lately

Are you eating nutritious food? Are you getting enough sleep? Do you lead an active life? Do you have issues that need to be resolved? Do you have some good friends? Do you have a positive attitude? How is your relationship with God? Some areas that you may like to look at!

Hangout with someone that is dear to you and talk over crazy things until you feel better

Maybe you can try to read a book or watch a good movie?

just ask your self why?? whyim feeling like that , of course there is a reason behind it , look deep into your self , you will find out, don't wast your time life is too short for being depressed ok?? be happy always

Maybe try meditation and mindfulness? (I'm not sure I've heard those things could help though!) You could maybe reflect on what you were doing back when you didn't feel that way, and see how it compares to what you're doing now. You may just need to go back to doing things during the time you don't remember feeling this way. Or you potentially may need to try doing new things, you may be subconsciously bored of the things you're currently doing right now, and need something that makes your life feel a little less the same. Orrrr maybe too much is going on and you need to find ways to make more time for yourself.

go out and catch some sun

Sit and do some deep breathing

Do a fun activitu to distract your mind. Sometimes i look up funny videos on youtube or anything to uplift my mood