Can depression cause you to have wacky thoughts like ??

Haha, I've had these exact same thoughts!

Like, I'd randomly stare at a stain on the wall, then start thinking about the meaning of life and how nothing really matters, and continuing living is just prolonging the inevitable, "I don't wanna live in this world anymore; I've seen all I need of it to know I don't belong here," etc.

Whenever that happens, don't automatically assume it's depression. We're human. We have feelings. Just because your feelings might be more morose than others' definitely doesn't mean you're depressed, just like that. Depression is a much more serious thing, i.e. you don't wanna keep living, going to work doesn't appeal to you and you'd rather cry in a corner, etc. Serious depression is a neurological disorder, and people take antidepressants, among other things, to curb the feelings/thoughts you experience, such as:

"I want to die."

"I'm standing at the end of this pier. It would be so easy to accidentally *slip* and end my life."

"I don't belong anywhere. Death would be preferable to living like this, if this even qualifies as living."

Unless you're having extreeeemely morose thoughts, then you're not depressed. The thoughts you're having are just your curious human brain exploring, as countless others have, the meaning of life, and why we exist.

Hope I helped!

Funny how reading your description gave me the eerily feeling that I am reading my own situation. I am depressed. Have been for years now. And yes, I get those same feelings and thoughts. I am thinking of getting help. I suggest you do as well.

I am just like you and above poster, do you have anyone to talk to? are you busy in school or work? try to stay busy, it will help you..