Look, you can be old and rich or young an poor, but being old and poor is bad shit.
A surefire way of doing the wrong kind of things is to spend your money early or try to live a good life quickly without thinking about the future. Or if you have an ok job or income to think that is enough, even if you cannot save.
All young people, understand that time an money are linked. It is not the same to invest early than late, it is not the same to invest more early that try to invest more later. 100 is worth 100 today, but 800 in 20 years if you play it safe but well. Make no mistake, you will need to start creating your wealth.