Constitutional Law ka Chakkar Hai Kya!!!

I'm literally freaking out guys... 3 days to go and still stuck on this one thing - the difference between 'Basic Structure of the Constitution' and 'Constitutional Values'... Arre, main toh yeh pata nahin kar sakta hoon! In both ke bare mein Constitution ke Articles 13, 14, 19 aur 21 ke under kya kya juda hua hai, yeh main samaj nahi pa raha hoon... Pichhle saal ke paper mein yeh question aaya tha 'Basic Structure' ka, lekin phir kya hota hai jab Constitution ke values ko protect karna hai aur unko amend karna hai... Main toh exams ki raat se pehle hi sleep karna hai, lekin is confusion ne mujhe khaali nahin karne dene ki zaroorat hai...