Is this world only full of bad people?

Not trying to be downer but everywhere I go or anything bad that happens to me always is included with people.

Like either their very nice and then once I trust them they mess me over or they do something bad to me and laugh.

The only things I trust are animals.

Are you supposed to become bad like others?

Genuine question and last time I asked it people said maybe you don't know how to communicate well or read people well and so you keep falling in that trap which I get as well.