One thing I try to remember every now and then is "A temporary thing is in front of you." It is always true. Whether that's a person you care deeply about, a nice meal, regular hangout times with friends, experiencing a game/story/etc you love, a place you regularly walk by, etc, remembering that helps me treasure things and savor little things and make decisions more like future me may want me to.
Things usually stop quietly, often without announcement.
And I'm just reflecting on things like the last anime FGC meetup i hosted & attended at my apartment in 2013, and how I cried when I put up the PS3 setup one last time... or when friends who live far away visited me and how I'm not sure we'll ever see each other in person again. Or thinking how I might feel in the future about my days in my apartment here now with my husband, compared to how I nostalgically feel about my home growing up.
Life is always going to be incomplete, we're always going to be incomplete versions of all the possibilities in front of us. But we can still try to take things slower, shift our priorities, and mull over preciousness.