You are in charge
Stop hoping that someone will change, stop trying to change someone, stop entering a relationship based on the potential you see in someone.
You can only change yourself.
You can set a good example.
You can love someone just as they are (and compromise on your expectations of what that person should be).
Focus on reality, the present, gratitude, and your own possibilities to initiate change. Maybe your energy will positively influence the other person’s life.
Choose your circle consciously. Choose love and bring love. Choose gratitude. Know that you are neither better nor worse than anyone else.