Is it easy to be a doctor?

If you decided to be one then you have to prepare yourself. Your age is not a big deal if you still under 40. I recommend that you buy a copy of the Med School Confidential: A Complete Guide to the Medical School Experience: By Students, for Students (Paperback) and the Medical School Admission Requirements (MSAR) 2010-2011: The Most Authoritative Guide to U.S. and Canadian Medical Schools (Medical School Admission Requirements, United States and Canada) (Paperback) from any book store or online.