Don't let your youth wasted and only to happy-happy alone
Of course nobody melarangmu to have fun and enjoy life while old you are still young. Traveling, hanging out, to buy goods that are preferred for the sake of following the trend of the present it was legitimate only.
However, activities to enjoy life in such a manner thus will be useless if you cannot compensate with hard work. Get used to just have fun at a young age will make you do not have a strong mental age.