Make sure you’re keeping an eye on things and not getting bogged down or tied up in things you don’t want to be involved with. You’ll get through the week if you stick to your budget and/or your plans for the day. Time to apply your will power and don’t give in to the whims of others. It’s a day to stay the course.
Others may not care about tomorrow, but you’ve seen the consequences of those actions. They choose to throw caution to the wind and goof off as they like, not caring about the consequences. They can deal with the credit collectors and in general be miserable because of their bad choices. Save for those few hours of glee when they decide not to care or exercise some self-control.
Learn from their mistakes and keep a vigil over your own path. You’ll avoid the pitfalls and traps. Doing so now will help you down the road when you can be frivolous in a responsible way. It’s not as boring as it sounds. But it is much more practical. Not to mention much smarter and safer for your outlook on things.