I have to give a presentation and before that I already had extremely bad anxiety . I can’t focus , I can’t focus on my presentation and it’s in two days . I feel so useless . Everyone else is just so much better than me and I’m so dumb compared to everyone and I’m not gonna even present right . I can’t contribute to anything at all. I can feel my insides shaking and my head is trapped in a inescapable loop. I know this is probably just life but I can’t cope well with this .Could someone pls describe maybe their experience on similar situations ? Any tips to help with this? For any stem people My presentation is on science and I feel so dumb , does everything have to be so complex because I can’t understand everything and I’m such a failure and literally only peaked as a child and now I have high expectations which I can’t meet. My friends are also so useless too.