fiddler - over the years i have seen my contemporaries end up in miserable dead end jobs because they took the witchtowers advice. I saw a married guy at our kingdumb hell who pious sneered straight from school, and he ended up struggling to support a wife and kids sweeping floors at a school.
When I decided on studying music, they tried to put me off with all the crap, but I told myself what if it doesnt come "soon". One elder actually had the gall to demand "why should you do what you want to do?" (he didnt satisfy me that I had to do what they wanted.) I do not regret defying them. i have travelled, worked in other countries, acquired three languages as a result and made many interesting friends, so now I have escaped i am never lonely.
it is never too late to enjoy what you want to do. The trick is to get your hands on that instrument every day, even if only for 20 minutes. after a year you have done at least 120 hours practise - and you can achieve a lot on that. I have taught absolute beginners who are adults, who now play well and have a great time.
When was your friend at the Juilliard?