We are sure that many things are different in your part of the world.
You say that your doctors told you that the tinnitus was a result of hearing loss.
You also say that they told you that you didn't need hearing aids. If at all possible, I encourage you to find someone who will provide you with the chance to try hearing aids. They may help mask your tinnitus.
Tinnitus is caused by so many things. Stress may be one of them. If you are agitated, frustrated and terribly bothered by this to the point of being depressed, you are also stressed. Ironically tinnitus can cause stress just as stress can cause tinnitus.
I'm sorry you cannot view the video. Another resource that might help you is the website of The Hearing Health Foundation. http://www.hhf.org They are doing quite a bit of research on tinnitus. Their magazine, which is available online or by subscription is worth looking at. The most recent magazine; Summer 2022, has an article about tinnitus.
http://www.hhf.org https://hearinghealthfoundation.org/tinnitus-resources
Yes, the doctor told me that the tinnitus is caused by the loss of the high-pitched part of hearing
It is because my hearing does not affect daily communication at present, so the doctor does not recommend matching hearing aids.
It is suggested that I try to forget about it and let me spend some time in my life, such as traveling, sports and listening to music.
During my school days, there was no pressure
Recently, because the volume of tinnitus has increased, I have some anxiety, and I don't know how to deal with it.
This is what worries me
I would like to ask how can I improve my sleep?
How to try to relieve anxiety?