When the whole world doesn't believe you? Everyone laughs at you and thinks you are a fool. How to face it?

I still have to listen to what people say, not to mention whether what they say is right or wrong, but I have a lot of mouths. What do you want to do without help? Of course, if you don't understand temporarily, you should boost your morale, work harder and stick to your goals. People have no goals, and living in this world is different from animals. Beauty will eventually grow old, and cleverness can only be effective for a period of time. The newborn lion is more terrible than the old lion. Now, for a moment's vanity, do you rely on other people's possible pity for future life?