Hello Unvers,
Welcome to the forum.
Thanks for sharing your POIS symptoms. Many folks here can relate to the first time they have visited or posted here at the forum. They will strongly identify with (sometimes overwhelming) negative feelings, because of the effect of POIS on their life and the sense of isolation it can bring.
You will find here however, a very supportive community who understand what you are going through.
Do keep taking your SSRI medication going, as it helps you.
You can also in parallel, begin a journey of learning more about what different people are doing to help reduce their symptoms. There is a lot of good content here, and you just need to be patient with yourself to get to understanding the topics being discussed and what makes most sense to you. I guess English sin't your first language, so that makes it a longer effort to read and understand :-(
Try ensure there is no conflict with your SSRI regimen. You could ask questions here if your Doctor can't. We aren't medical people though, just experienced in fighting POIS symptoms.
Try things but don't overdo too many things at one time. ALso, feel free to message the mods who could recommend some specific posters to follow.
In time, you will feel a sense of hope and find some things to help you.
I for one can relate to where you are at, as can many. I am at a much better place now, because of the open sharing and learning from the community of great guys here.
What works for some people does not work for others, so it takes a bit of trial and error, but you will find help here, and there is some ongoing structured research efforts also in the background. Those will be shared in the coming months and year by Demo, Quantum, Stef and others.
Best wishes for now,
Colm - in Europe also.