The key is to learn to decide you want to keep going, regardless of logic. That sounds trite and stupid, and yet it’s true. You have to be willing to let yourself be motivated irrationally.
You need to be slowmaxxing. You need to be reading long, fat books. You need to be making 48-hour chocolate chip cookies. You need to spend hours watching wildlife, you need to spend 15+ min making your coffee. You need to breathe in and breathe out. You need to be slowwwwwwwwww.