One trip is unlikely. 5-10 is possible. Depends on the specific case and the correctly chosen psychologist. After 3-4 consultations, there should be shifts for the better - perhaps this is the criterion
Psychologists are needed for this in general. :) (Well, not only for this, but among other things.)
However, if there are signs of clinical depression (in addition to problems with mood and motivation, sleep disturbances, appetite in any direction, a drop in libido), then it is better to look at once a psychotherapist and psychiatrist. Psychologists do not administer therapy and do not prescribe pills.
I will add about "how it works": a competent psychologist should, without pressure or manipulation, help you understand yourself, efficiently reformulate the problem and find solutions. It seems like a good conversation with a friend, with the difference that friends usually still have their own ideas about how our life should look like, they need to be given mutual comparable attention and they do not have a wide theoretical base and knowledge about various variants of psychological problems. their reasons and solutions.
As for the work of a psychologist, the work of a psychotherapist looks a little different.
Girl, I read 4 of your questions here, they are all on the same topic - depression. If this problem really worries you, you need to talk about it. Of course, you can ask around here or on medical forums, or on any other, but it's better to discuss everything with close people.
Then I would still recommend you to turn to a psychologist, and if you do not help - to a psychiatrist. Firstly, depression does not arise "just like that", in the world there is a very widespread stereotype "you are nothing in life you are not engaged, so you have depression. Go work / go to the army / go fuck * d, etc. " If you really have depression, and not just "depressed" (what is now fashionable to call simply fatigue and a small excess of stress), it does not need to be triggered, it will only get worse. The psychologist / psychiatrist will determine why you have depression, lies behind him is some other mental disorder (this also happens).
Try to only carefully select a specialist, and not go to just anyone. As far as I could understand, in the CIS countries, in most cases, psychiatry is not at the highest level. But this is just my personal impression. Good specialists can be found everywhere.
Consult a psychologist first. If your depression is behind bipolar disorder, or obsessive-compulsive disorder, I recommend cognitive behavioral therapy. Will not help - contact a psychiatrist, but here you also need to carefully choose a doctor.
Will definitely help. However, you need to competently approach the choice of a specialist - some psychologists have a completely stereotyped head, they will not be able to help you with anything.
A competent psychologist will help you understand your head, and also, no less important, prescribe the necessary pills, who can competently suppress depression.
I think it won't help. Everyone knows why they are depressed, they simply cannot change anything. What do you think a psychologist can do? Talk? Internet is not enough for you?