From the tone of the subject, I really can’t tell that the subject has a sentimental temperament. Maybe the subject is free and easy on the outside but delicate on the inside. Out of "compassion" for similar people, I would like to briefly share my views.
In fact, sentimentality should not be a very tragic thing. In this increasingly impetuous era, it is a rare and regrettable thing to be able to find a trace of sadness and joy in the daily flowers and grass, sunshine and rain that others would never bother to notice. Didn’t you realize that during this process, you never felt empty? You won't complain about boredom and irritability easily because there are emotions immersed in it. This is an enjoyable process.
It’s just that everything should be measured. It is not good to overflow with emotions. Such a life is not poetic. So we want to be ruthless. However, there is no need to act cold.
Find something practical to do:
Go to study, history, politics, philosophy (recommend these), or other interests;
Develop a hobby, Painting, calligraphy, music, etc. are not boring;
Make a friend who has similar interests, has connotation and opinions, and allows you to look up to him (very difficult, but very important);
Think more about the future, whether you are currently studying or already working.
In short, be good at being alone, think carefully and act carefully. After you develop a habit, you will become a person with a cold appearance but a gentle heart who is calm and calm when things happen