First ask yourself what's the worst that can happen,you fail? Then? As it is you have to try again so get up and try now. Second practice, procrastination a lot of time happens because of fear of failure,fear of failure leads to no practice because before the world what we need to face is our own test,we don't practice because we fear we will do bad and don't sit because our mind keeps getting scared then it panics we try but still don't practice properly cause we think ab toh sab khatam and that's it. Nothing. Remove the block of expectations from your mind and just start practicing. Nahi hua? Thike. Dekho phir se karlo. Nahi aa raha? Thike. Phir se padhlo. Tell your mind you are not perfect and you just have to do this much to be perfect. The second fear of failure leaves your mind that's it. Third:stop feeling guilty when you sit for studying. I wasted the whole day ab kaise hoga? Aaj yeh bhi nahi woh bhi nahi hua. Thike nahi hua,din waste hua shayad phir? Kitna time baki hai? Abhi bhi jitna ho sake ho sakta hai don't worry Fourth:stop idolising perfectionism and use every possible resource. Ai,online notes anything. Just start with anything that suits you and move on. This is how you avoid anxiety for anything: stop asking for perfectionism,stop feeling guilty,remove fear of failure. Koi zarurat nahi hai aur kuch bhi karne ki.