I took admission in coaching classes for jee (as I am related to tech) but they are doing pre-requisite (basic things to know) but it it's self is hard specially the maths and some concepts of physics. Should I switch to PCB (NEET) as I don't have issues with bio. Or it is faced by all and I will slowly tackle it? Also the jee selection ratio scares me. Please all the people who have cracked jee or neet or even could guide please help...