Whoever told you that really didn't know you Scott.
When I was 17 I tore down a running, driving KZ1000, my first street bike. Neighbor came over and said, 'what'd you do that for? You'll never finish that!' By the end of summer I had the nicest bike among all my friends. Sometimes words like that only motivate us to be the best we can be. I hope it worked that way for you too