I'm so anxious at work. On weekdays I wake up and it immediately hits me, I feel this sense of dread and my heart races (I wear a smartwatch, working hours my heart rate is almost double my resting level). I rarely feel anxious on weekends.

I want to do well at work, and have had great feedback from my bosses and they keep giving me more work and more presenting roles to clients. I'm hoping to get promoted so keen to demonstrate more responsibility too. My issue is its sending my anxiety through the roof. I'm so anxious before presentations, and have to prepare a literal script beforehand to come across as comfortable. More and more I'm getting on the spot questions / asked to join calls with no warning and it stresses me out to not be prepared, I can blank in these situations and feel like an idiot, which sends me spinning that I'm not good enough, I'll get fired etc. Its becoming increasingly difficult to deal with work, I don't enjoy it and I feel like I'm burning out.

Has anyone experienced this? Does it change? How can you progress your career when dealing with social anxiety. 

I feel like I need to learn how to deal with the anxiety or change careers entirely because presenting is only going to become more important part of my job as I progress. Though I'm also super anxious in interviews and feel like it's easier to prove I'm a good employee by the work I produce than how I come across in a conversation.