Hey,

These days things are changing way to quick and you just can't predict anything. No one knows about the future. There might be  a possibility of an event to occur and at the same time the event may not occur.

All you can do is just to prepare for the exam and stop thinking about other stupid things. Age is just a number and has nothing to do with you cracking the exam. Try harder. If things go well you might crack the exam.

Hope that helps.

Thank you.