1. Save your love capital and don't fall in love with everyone you meet. 2. It doesn't matter if you have to work harder, it's better to die of overwork than to starve, at least you can be proud of yourself. 3. Save money and energy, as your parents are getting old, you need to ensure their peaceful passing. 4. Don't worry too much about gains and losses, because you don't have much time left in your youth, the most important thing is to be happy. 5. Smoking will certainly affect your physical health, but if quitting smoking leads to mental breakdown, that would be an even greater loss...