Someone once asked me if his desire to begin learning the shakuhachi at the ‘advanced’ age of 38 was a sign of mid-life crisis, being too old to start learning a musical instrument. Below is my reply:
If you think 38 is ‘mid-life’, then think again boy-o.
You are still very young and could become a master musician as easily as one who is much younger.
Really the advantage youngsters have over older people is that they are more likely to have the 5-8 hrs a day to practice needed to become a ‘master’. So it is really not age but circumstance that gives most youngsters the advantage.
But in your case, try practicing 30 minutes to one hour a day for a start. The more the better, but that is sufficient for you to reach your goal in a few years (ie., 300-400 hrs of practice).