Is p90x the fitness program good for a teen that is 13.?

Of course I'm gonna use 10-25 lb dumbbells until I make my to 60 lb dumbbells. I'm confident it works I also have some questions. I'm 13 and weigh 210 lbs so how long will it take for me to get abs like tony horton.
Should I talk to a doctor. This will be a long journey but I will risk everything when it comes to saving my life