My Future self is a person different from my current self. We have not met and I do not know them. My Past self is also a person with whom I have a shared experience. We are a set and I travel with my past and future selves through time.
I ignore my future self at my peril.
Language impacts how I perceive time so I must be careful describing my relationship with my Future self English is not a strong language for this. The future is too ill-defined to be of use.