You are at the beginning of a long journey, not even entering the tunnel really, but approaching it. However you do use the word tunnel, and that in itself is very positive because you already know that there is an exit as well as an entrance to this tunnel.
Sometimes in the tunnel we feel we are standing still, even retracing our steps but in the end we do see the light and comeback out into the world.
We are changed by our journey but we have also grown during our travels.
Many inexperienced people may say " how do you cope?" The answer is we have no choice, we do not choose we just "get on with it" and we do cope in our own way.
You will get support here , keep coming on and talking to us.