I think it really depends. I hear you. Sometimes I get so angry at myself for allowing someone to tell me info that changes my behavior or mood for that day or for that situation. When it turns out the way it was predicted, im happy. When it doesn't, Im mad. But guess what, I made the choice to ask for advice.
Some psychics I have connected with and they HAVE told me things that have come to pass or they've mentioned info about whoever I was calling about, that they COULDN'T have guessed.
Then, there have been other "psychics" who have fed me nothing but B.S or fluffy fairy tales.
Not everyone is a real psychic, but there are some on keen who are legit i believe, others are just scamming.
I guess eventually you do reach a point of frustration, and you give up. I did last year for almost a year. I just recently started calling back. When you are in a vulnurable situation where you want things to work out in a certain way, and its not going that way, we become anxious and fearful and WANT to know the outcome or what is going to happen. We get sucked in.
Sooner or later we have to realize, it is what it is. What's meant for you will always be for you. That's it.