LW Arguments about if this is even a good idea aside, I did have friends who were supporting themselves from age 18, who had and have a good relationship with their parents, and don't regret or resent it.

The difference? They knew it was coming their whole lives, it was part of how they grew up abd something they planned around their whole lives (Also, they knew their parents would still be supporting them in some ways, just not with rent and groceries.)

You have waited too late to pull this off. Don't.