Life is too overwhelming!?

okay so im basically having a mid life crisis at the "rightful" age of 18. I feel like there is just so much life has to offer and im not living my life to the fullest. Theres so many amazing people who ill never get to meet like all my favorite celebrities. Theres so many beautiful places ill probly never get to visit. I just dont understand what i have to do to have a more furfilling life. Im so lost and depressed its a struggle to get out of bed every morning just to go to school and work. I feel like a ******* zombie. I just know when im 80, ill look back on my life and reget and feel sad about everything i DIDNT do. I just feel like life is too short to be able to do all those things. Does anyone understand what i mean? What are some words of advise to help me deal with these crisis?