Beyond a point, self-sufficiency is boring, monotonous, and offers no incentive to continue to live for the next moment.
Both self-sufficiency and dependence lie on the opposite ends of the same scale.
Life is best enjoyed by allowing the self to be liberated of stipulations and proscriptions - allowing the self to slide either ways along the scale, pushed by nothing, but the momentum of impulses.
There are no 'points of no return' on either sides. Whatever such points we perceive are merely our own self-impositions.