I'm sorry, but 10 days is not enough time to reach that goal. I'm not trying to rain on your parade or anything, but it isn't realistic (and I'd be doing you a huge disservice if I told you otherwise) to expect muscular definition by then unless you already have it.
I'm not sure what your body fat percentage is, but in order to have muscle definition, you not only have to strength train, but you have to do cardio as well as eat the proper nutrition. Doing cardio will help you lose fat (if you have any extra to lose) and allow your muscles to be visible. If you have a layer of fat, you can strength train all you want, but that definition wouldn't be seen through the fat.
I would recommend you track your food and fitness to make sure you are meeting your nutrition needs and that you are also meeting the guidelines for your fitness.
Please review the Fitness & Exercise guide on your start page to get a better understanding of your fitness needs and what a healthy fitness program looks like: teens.sparkpeople.com/resource/fitness_art