I having headache every now and then....I have so much stress about my up coming exam where I've barely properly studied this is my drop year and. don't feel like doing anything and just sit...this is not what I'm ....I've the potential to do it....but since corona my studies and my habit of studying is so much hampered....and till now I'm unable to study properly and this is not a normal board or 12th exam ....it's an entrance exam π. Any suggestions or advice to how can I improve in my studies and do much in less time....it will help me a lot...