Depression is when you can't feel at all because it's just too much.
Anxiety is when you feel too much.
Having both is a constant war within your own mind. 
Within yourself, the thoughts and feeling fight and it never stops, not even in dreams.

I'm NOT saying that depression is only when you don't feel shit.
I'm just saying for me, right now, depression is feeling empty and alone.

And I'm NOT saying anxiety is only when you care too much.
I'm just saying my anxiety comes from my giving too many fucks to too many things and people in my life.
And having both is a constant fight, a war. 
Every
Single
Day.

(*Just remember that when you read or hear someone talking about their mental illnesses, that it's their own struggles and it doesn't mean it's always like that for everyone. Mental health is a very complicated subject and it comes up in different shapes and manifests itself in differents ways.*)