I experienced similar issues but I would say yours sound even worse. At the end of the day, we live in a time where there are not many needs mostly wants. When you hit rock bottom it will be much easier to come back, it will almost be a relief. Most happiness really comes from a good cup of coffee and talking with friends and that is like the real happiness in life you don't need all the other shit. Let the anxiety take you the bottom of the sea and let it drown you. Once you do, you'll realize it has no true power over you. Your afraid of being afraid of things, a cyclic loop that puts your body in shock and will keep you there. To break the chain simply let it do it worse and see what happens, in only 5 minutes of zero negative throughts you can exit the loop. As you and I know, Death is nothing compared to what your going through.
Medication helps, but not always going to fix it completely but just knowing that you can* trust me. You can beat it, this should give you hope. You can do it, there is* an exit and it is right in front of you but you'll need courage that is heroic. Never give up, knowing you've got nothing to lose is your greatest strength, use it! I tried steroids, last 6 month stint I had in hell. I would say a dose of 350mg a week would be good for you. Find a good doctor to subscribe it to you and work out every day, zero caffine, zero stimulants, and eat every* two hours make sure you eat your 200 grams of protein and eat like your body is a temple. That will do 100% more than anything. Remember, you've got nothing to lose because you can't want anything until you escape. Worse case you work at some shitty job but how quick would you take a job at mcDonalds to have your mental health? You'd take it in a heart beat if you thought it would help, and I'm not saying you should but the thought of the future is worse than it is. You'll always have a funny feeling about the future until you beat the cycle because your fight or flight is always on but know your in a maze, make sure to take different paths. If you take the same path every day, every thought you won't get out. Sometimes you have to go the way you think is wrong. Hard to explain and I wish the best for you man and you know lots of people have this issue, keep trying different doctors and meds. Keep trying different things, is the biggest advice I can give you.