> Fullstack is interesting because is seems to be almost unique to the software engineering field. Other fields mostly have more division of labour, you don’t expect the dentist to cure your heart and neurosurgeon to fix your hemorrhoids.

What about GPs?

Just like the medical field, software needs both specialists (to go really deep down the rabbit holes), and generalists (to tie everything together).

Personally I love being a generalist. Sounds like the OP just isn't in quite the role for them.