I let my whole life blur by and missed everything.You will probably be very disappointed to learn that you are not the only person who has done that. I had a guy tell me several months after graduation that he spent those four years studying, working hard and rarely had any fun while many of us, who may have been a notch down with our GPA, had a good time and learned more about life than he did. He knew he had blown his chance, his one and only chance, as soon as he walked across that stage.
I suggest to you that you need a purpose. But don’t focus exclusively on only that. Live a little while you have your chance, your one and only chance. However long you may have, whatever condition you may be in, it is still the rest of your life, do something with it.