How to write a sad and desperate sentence that is hurt by family members?

Hurt by family members, sad and desperate sentences are as follows:

1, no one in the world will be sincere to anyone. Only liars are sincere. Because he wants to lie to you sincerely.

2. Familiar songs are forgotten if you don't sing them for a long time, and familiar people become strangers if you don't contact them.

3. People are selfish. People who used to call me weak in feelings sometimes feel that they are too cold-blooded. Now, I think I am right about everything! The older you get, the more sensitive you are, and the more you want to cry.

4. Sometimes I suddenly feel that I have said a little too much. The more I grow up, the more lonely I feel. Some emotions are still hidden. At the moment I talked about them, I already felt that I shouldn't, not blaming them, but really felt that it was good to close the door and be alone.

5. Never overestimate human nature. Never trust any feelings too much, including affection, friendship and love. Overestimation always brings disappointment and chilling.