I feel soooo hopeless

I feel soooo hopeless In this very moment I am in class and I did the homework and I want to share it but I literally can't speak up! I am getting so nervous, tomorrow I have an interview in the place that I rlly want to work but I don't even know how will I say what I want to say. I feel so small, like I have no voice and this is getting worse and worse:( I feel like I ll never achieve what I want cause I even can't speak and say and express myself I m posting cause around me nobody gets how I feel ! just wanted to share:(