LPU - Lovely Professional University

JEE Mains is all about practice and concepts. It does not matter how hard your study, it matters how smart you study. If you did not qualify JEE then it does not mean that you cannot qualify GATE. If you study 10 hours daily. GATE's syllabus is huge though you may feel that JEE Mains is much harder than GATE. Be optimistic and prepare yourself thoroughly all the topics and previous year papers. You should study daily, it does not really matter. You are devoting 10 or 7 hours but that time should be the time you should be doing nothing except what you are meant to do. GATE can be qualified very easily if you prepare well. Do not lose hope. I am also a GATE aspirant. I am pretty sure you can do it. Just make your concepts clear and practice.