I'd like join Quirky in welcoming you here. School councilors are as much a part of the school setup as teachers, they are there to assist you and can do an awful to of good. They are there for everyone, including you.
It is amazing how many people think their problems are not as bad as the problems of others, so maybe they don't deserve to go. That is just plain wrong. If you have a problem that is affecting your life you simply go. Everyone will be attended to, if not be a councilor then by other means.
Quirky is quite right about organizing what you want to say first and then using prompts in the consultation. I do something similar if I'm worried about a face to face and forgetting things, or getting muddled or just plain too embarrassed to say everything.
So I spend a few days writing it all out in point form and give a copy to the councilor so you both have one. It does make it easier.
Either Quirky's way or mine is good. Depends what sits you.
Some people are very worried that others will see them go to the councilor and will be embarrassed or expect others to think badly of them.
I guess the two ways of approaching that is choosing a time when you will not be missed by your fellow students or else letting them see and if the subject is raised say it is none of their business and if necessary they are thoughtless to talk about it -get cross if you have to.
Your grammar is OK, I could understand exactly what you meant. I hope the councilor is able to help. You know you are welcome to talk about anything you like here if you want anytime, we are a pretty friendly non-judgmental crowd.