I just do. I used to do psychoanalysis before coming to the US and that helped a ton. I haven't looked for a therapist here, so it's a little worse now.
One thing that helped me deal better with it was getting married, and specifically getting married to a woman who had a child. This suddenly took a lot of my focus out of myself, since now I have to care for others. It also puts me in a "I can't fail" mental mode which has me worrying somewhat less than in years past. But it's still pretty bad, I just don't panic as much anymore.
Another thing that made a significant difference was starting an exercise routine. It makes me feel healthier and therefore less worried about coming down with a terrible disease.
You should start seeing a therapist, and I can help you with that. It worked then, and it will work now.
Send me an email and I will walk you through this. You may feel that you have to think it over first, but that will only exhaust you in a wash-cycle of rumination. Send the email as soon as you reach the end of this sentence.
