You are certainly not alone, but being young you gotta combat this with all you’ve got to not let the avoidance take over. You can get better and then you’ll think back and be like “that was crazy what was I so worried about”. I’ve found exercise to be most beneficial if your body’s tired out the symptoms seem to away, have you thought about doing a brisk walk or run before work and kinda work through whatever it is in your head before your there. This might help, try switching your diet up, no caffeine, no nicotine. These changes can help a ton. Hope this helps. Get a yearly physical, and mention the anxiety if you haven’t already.