here, i assume you are talking about counselling or clinical psychologists. psychologists follow science, they have protocols and rules, so yes, they help.

but the same with lawyer/doctor that are A grade to F grade, you will also find psychologists who are really good and bad.

As it's the heart matter, you will also need to find someone that is compatible to you. counselling only works if the person wants an answer to their predicament... the wife doesn't want. so..