Technically all the dopamine you need is there, it's just that there aren't enough receptors to receive it. Hardly more than a semantic difference though, besides being even more frustrating knowing it's literally all up there but there aren't enough doors for it to squeeze in to the party bus fast enough.
Am I lacking dopamine because of depression or because I've done everything I like so much, I can't get back to the dopamine levels my brain has grown accustomed to...? 🤔
I've seen every movie I want. Played every game. Read every book. Done so much shit off my bucket list. I'm just straight up bored with reality now.
People have had similar experiences for least a couple thousand years.
Ecclesiastes 1:8-9
All things are full of labor; Man cannot express it. The eye is not satisfied with seeing, Nor the ear filled with hearing.
The thing that hath been, it is that which shall be; and that which is done is that which shall be done: and there is no new thing under the sun.
Were most of your pursuits for your own enjoyment? Nothing wrong with that at all. But maybe that's the next thing- doing stuff for community/others. That seems a bottomless well of satisfaction.