Past will never come back and Future is yet to come then why think for Future, we never know what will happen next even within an hour.
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Present is something which we are living right now so enjoy because within a second it will become a past which will never return to us.
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There are movies on Time Machine in which we can go back to past but that thing never exist.
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Make your Present perfect as a good memory for future.

Your past won’t return, future is unpredictable so why be so concerned.
Right now this moment, your present is a gift, cherish it for it may not last forever.
Past may be tempting but it is past, you can’t revisit it. Live your present as you want to relive these moments over and over again.
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