I'm working on things. Just, things I subconsciously devalue because they're not new/hard/valuable enough. So when people ask me what I work on I often answer 'nothing much' back even though those same people would find what I'm actually doing to be as hard as most jobs - which is not that much but enough. Enough is what I should answer, and maybe you too.
Everything will work itself out, these years will turn out to have a hidden purpose, or you'll eventually die and it won't matter either way. If we avoid any major moral failures till the end then we're ahead of the curve, friend. We did our part.