I wrote down exactly who I want to be and what I want my life to look like. then I asked what does he do. how does he start his day. what does he eat. when does he sleep. how does he handle the hard conversations. what does his work look like. I wrote all of it down. then I just started doing it. you don't have to feel like him first. you act like him until you are him.
So glad I learned how to turn this off. Spiritually its a form of mental bondage. Lot's wife turned into a pillar of salt for this and that's what you are when you become a slave to nostalgia. Renew your mind daily. All you ever have is the present. Be where your feet are.