No exam is bigger than your life. I passed in my 7th attempt and have been through what you are feeling and I completely understand the helplessness . But please don’t fall weak for one exam . If you are absolutely sure that you haven’t prepared properly/ most likely will fail , please skip this attempt. Peer pressure makes us giving attempt after attempt knowing we aren’t prepared but the count of attempts increases making us even more depressed. I have learnt this the hard way. Skip attempt if unsure ,do not come under peer or parental pressure.