i know it's hard to speak up in work situations when you feel anxious. and it's hard to do public speaking.....BUT, it can all be improved.

there are some good books, i'm sure, that you could read and do some practicing at home. i always practice a speech to my dogs and cats several times.....

and if the truth be known, a lot of the people that you're working with are probably also very anxious about their presentations.

it takes time to do anything well. you might talk to your immediate supervisor to let them know about your struggles and maybe get some suggestions on it......good luck, pat