Hi PolarBunny,
Welcome to PC!!!
I'm sorry you're struggling

You say you have everything
most people wish for in their lives.........but have you got what
you wish for.........sometimes you can wish for/
need more than/
different things from the things that make other/most people happy..........and that can be OK, in fact that can be good if you aim more for them (depending on what those different things are of course!!).
Or another angle.........you can have
everything you could dream of/the "perfect" life for you.........but that doesn't stop depression stepping onto the scene/taking over.
But you're taking a
great first step in talking about it, and
thankyou for sharing with
us.
As you probably know anyway it can be incredibly hard to shake/move away from those feelings but reaching out for support can sometimes help a bit.
And on
here.........well there's some
great people who can offer you understanding and support.........
and ideas of different things that have helped them or/and may help you a bit.
So again..........welcome!!
And if you want to talk a bit more about what's going on for you..............
Alison