So I find nostalgia distasteful.
This isn't an opinion by the psychology communities standard, nostalgia is a negative emotion for almost the exact reason you described.
Almost you went full circle back.
expand upon the realities you want to be in!
The ones you want to be in based on previous environments can still be.
uneducated, unprepared, ignorant
This is not being free of nostalgia, the trauma and attachment needs to go for a more sane desirable present goal without making expectations go up and attachments form.