My bro struggled with severe anxiety. I had to spend a couple of early mornings (1am, 2am) over the phone with him trying to calm him down or just listen to him till he is calm. This is what it is like m if I can put it in words:
It is a mental, physical and spiritual battle. It is difficult to explain, but it feels like a heart attack, except where your heart is there is a back hole. The hollowness suck you and everyone around you in like a black hole. You struggle to breath, you brain at the same time tries to figure out whatever it is that you are scared of, it tries to justify what is going on or whatever is throwing you into the pit of hell is not that bad , but at the same time you have there extraordinary hopeless desire that you need to escape, only to realise you have nowhere to escape to.
Now he was in a horrible place, people with a lot of power having control over him, situation he was forced to live with even though it was completely unfair, abusive and sickening. I have met these people. They think they are gods. I had to drag him out of that place, found him a 1year program far from the people to get him back to life, he finally started to heal, after that he spend another year as a driver for the organisation. It gave him some purpose again. Now he is working with me. Life is not perfect and there are still challenges.
But the environment you are in and the people in it makes a massive difference in how you handle difficulties.
He walks a lot , exercise is very important, that's the way he clears his head and slowly start meeting some friends. He is also seeing a psychologist, because when you have been exposed to an abusive situation for a long time, even if it was a while ago, those things mess with you, even if it is subconsciously. Now he did have to go see one or two psychologist and psychiatrists to find the person and treatment he felt comfortable with.
Anyways, I am proud of my bro and there is a way to deal with something like this. It is not hopeless.