First and foremost, change your perspective of losing weight. Losing weight does not "suck" and it should not be consider "work." It should become a lifestyle adjustment that enables you to make better choices about what you eat and your activity level. A positive outlook will help your commitment to healthy living.
Start by liking yourself today. I realize you may not be your ideal weight, but you have to like and accept yourself today. At 14, you still have years to grow and realize your more ideal physical appearance. In addition, most people will view you based off of how you project yourself (confidence, kindness, etc) over what you actually look like. 210 at 5'9" is not too bad. I weighed about the same at that age (I'll be 30 in November). However, I tortured myself through my youth and ended up cutting down my self-esteem and sense of self-worth by my early 20s. It took me many, many years and many set backs to finally build myself up (still not my ideal appearance, but I accept myself at 5'10" and 170lbs).I am squishy in areas I wish I was not squishy, but I have never adopted a regular workout regime.
As lifeontwowheels stated, controlling how and what you eat is critical to weight loss. My family modeled me to crave massive portions and go for seconds. Furthermore, I eat very, very quickly which only compounds the problem and leads to over consumption. Slowing how quickly you eat, using small plates, and drinking water help with overeating. In addition, food choice is critically important. I am a firm believer in whole foods and real foods. I do not believe in synthetic or low-fat alternatives. That said, I focus my food consumption to vegetables. My wife and I also cook for ourselves and make most things from scratch. Being young, it can be difficult to get the foods you want and the time to cook them. However, frozen produce is amazing easy to prepare and can be a life saver.
Read books on diet and other cultures. In addition, consult your doctor. I personally enjoyed The Omnivore's Dilemma by Michael Pollan, which really changed my thoughts on diet.
Some TEDs because TED is awesome:
http://www.ted.com/talks/lang/eng/dan_buettner_how_to_live_to_be_100.html
http://www.ted.com/talks/lang/eng/dean_ornish_on_the_world_s_killer_diet.html
http://www.ted.com/talks/mark_bittman_on_what_s_wrong_with_what_we_eat.html