Hello,
First of all learning has no age. And why to care of world when you are passionate...? Take a live example of a person whi holds a record of enterin into CA at 58 and be a CA at 60. It none other than Shree S D Bala. He being a wide spread banker took up CA at that age when he was restricted to CA at 60.
LIfe is nothing with out passion dear friend. Remember that if you want to do something then just do it. Uncles are not the words used by professional students. Rather Sir is used, the reason is he is experienced, senior to him, knows life and what not.
I find many of my students who are very senior to me. They say me that we wanted to be CA once but they could not continue studies due to many personal reasons. Just don`t care of wold and go ahead, only if you are passionate enough. And which exams are you talking about...? By the age of 38 you might have given many exams in life then why you are worried about exams which just has 3 hrs of gestation time...
All the best, Hope i attempted to change your mind a bit. BE POSITIVE & HUNGRY.