idk what to do , not feeling good at all

i was very motivated in feb , was working very hard and on track but all of a sudden i just lost it all. this 5 days of march have been very rough for me , i have loose my consistency and when i look at any pyq i don't feel confident at all especially in maths and now tend to mix up some complex concepts in place of simple and have the answer wrong. only 25 days left please guide me someone.