I'm not trying to say that there will be no more great moments in the future, but we need to realize that sometimes the grass is greenest right where we are standing and we should be living for the moments we have right now before it's too late.
No matter what people may say about the real world, the future holds no guarantees. Take on whatever challenges life throws your way and keep moving on. Now that's a piece of real advice that will always be helpful.
Upon graduating, you have presumably spent four years in an environment where there is a strong emphasis on getting into college and graduating, but not usually a blueprint for when you get out. Okay, now what?!