I remember being 17 and having body image issues, so I hope you find the success you are looking for! I think that eating healthy and exercise will make you feel better and as a result will make you more comfortable in your own skin. Good luck!!
Goals for 2014:
Complete Couch to 5K- DONE!!!
Sign up for and complete a 5K- Set for July 4th, 2014
Plan at least 3 outings with the family that involve being active- 1 set