After three years in high school, I have changed and become indifferent.

The reality is cruel. I remember a saying that life is a process from a white rabbit to a wolf and then to an old fox. Perhaps, different people have different understandings of this sentence. However, people are growing up, and there is a song called "The more you grow up, the more lonely you are". If you want to adapt to society, you must always face it.

First of all, your family has a great influence on everyone. Maybe the quarrel between you and your friends in the second year of high school was greatly influenced by your family. Your family will make you sensitive in some ways, and you will feel unbalanced compared with your friends. Instead of making family a stumbling block, turn it into pressure or motivation, both of which can promote it to a certain extent.

Then, about society, fame and fortune are very important to realistic people. Be realistic, everyone, no matter who you think is "good" or "bad", should keep good relations. Regarding the definition of "friend", I remember my English teacher once said that China people will always be brothers and old friends when they meet, and foreign friends are not casual. In fact, the school is much purer than the whole society. At school, a true friend is something you never need to hide. Feel free to say anything if you have any questions, but really understand the word "sincerity".

You mentioned that friendship is a matter of gain and loss. In fact, friendship goes both ways. As physics says, "the action of force is mutual", you don't need to force it deliberately. Perhaps your friendship is based on your natural temperament. You have to savor this feeling yourself. Although you don't have to be deliberate, you should also manage with your heart.

A lot of things, as you grow up, your experience will gradually enrich, and you will know a lot about dealing with people. Also, remember to communicate with your elders more. Believe in yourself, no one can be defeated, only yourself!