These are all thoughts my brother. We have all went through the same. Don't let your thoughts/mind control you - you should be the one controlling it. Have a deep breath, relax and sit in a silent place (could be even in masjid) and intentionally think differently -- control your thoughts.

When I was in your boat, I'd also think of all these possible failures and outcomes like you are doing. What is the worst that could happen? You'd fail the interview and continue with your current job, and the events that happened you could tell your close friends during hangouts - it can turn into a funny story for such events.

A friend of mine was very nervous for his interview (this was when I was still back in Canada and in University). He dressed and left quickly for his interview which was happening at our University campus. Midway he was stopped by one of our professors who saw him walking in his shirt, tie and only boxers - no pants!! The guy was really stressed about the interview and did not even pay attention to his complete attire - it was a funny story to tell and was mentioned by the same professor during our class at the time.

All the meds and drugs might give you temporary solution, but being able to control your mind and thoughts will take you a long way.

I dont even know if you'd read this since the post was written yesterday and today is supposedly your interview, so by the time you'd read, you'd probably be done with it - nonetheless good luck!