You're 20 years old and your life is not too burdened with problems and stress.
Fast food makes it easy to satisfy your hunger, and several alcohol shots tone up and relax at the same time. You can once again return to the virtual world of computer games after fried snacks and few tequilas. Is this perfect life? Or normal?
In any case, 40 years you'll hate yourself for spent aimless days. Unless you think 40 is very far away and everything will be fine. Remember at any age you want to live, but you don’t do that in any age.
Doctors and researches tell about typical mistakes of youth, which is killing themselves day by day. Change your life easily, just stop make these mistakes!