Why does it feel like no one in the world loves me very much?

Because you are too pessimistic, you have parents, friends, it is impossible that no one loves you.

The character trait of a pessimistic person is that a person who is unhappy and pessimistic at heart is perhaps experiencing emotions at a higher intensity, in other words, more sentimental. These people have greater mood swings and more intense emotional reactions, and it may be that just a very small thing can inspire a big reaction.

For example, when a couple quarrels, some girls cry their hearts out, while others will shed tears in silence. The former also tend to get very strongly frustrated when they encounter difficulties in life, all of which are genetically controlled.

Psychological Activity Pointing Characteristics

It is often said that a person is introverted or extroverted, which in fact means that their psychological activities are pointing to different locations. Some people like to get ideas and information from the outside world, such as those who are cheerful and active, they like to talk to others and express themselves, while reacting positively to others and thinking less.

On the other hand, some people like to immerse themselves in their own inner world and tend to gain new insights through reflection and reminiscence. The former tend to have fewer things on their minds, and if they do, their attention is quickly diverted. They tend to refuse to think and tend to gain insights from action and practice, and are therefore less likely to fall into sadness.

The latter, on the other hand, often seem preoccupied, and their brains don't stop resting for a moment. They reflect on what they did today that wasn't good enough, they make plans for what they'll do tomorrow, and in general, they are immersed in their inner world and need more personal space.