If you’re the kind of person to casually claim you are depressed whenever you feel sad, PLEASE STOP.
You probably have NO IDEA what depression feels like. What you experience is fleeting, as opposed to a medical condition that causes a much deeper sadness that legitimately makes you feel like you are sinking into a bottomless pit. All the time. Depression can cause a complete change in your MENTAL STATE besides the constantly feeling down - this is what leads people to contemplate suicide or alienate themselves completely from the rest of society.
Further, whether you believe it or not, your brain will subconsciously pick up on the constant ques you keep feeding it and begin adopting the characteristics matching that of one of who is depressed. You will begin feeling down all the time and not experience humour or a point in life anymore. You won’t want to hang out with any friends or meet new people. If you’re lucky, you’ll want something to do with your family.
Do you really want that?