Looking out for the future

I'm a 19 year old full time student. But now that I finished my third semester I noticed that due to my busy school, work and extracurricular schedule I have been neglecting my health. I mainly want to lose weight to help boost my self esteem but now I'm also worried because I come from a family with high blood pressure and high cholesterol. I am 5' 6" at 208 lbs. I'm hoping to find some friends on here to mutually support each other and learn from each other. My plan is to lose 30lbs by June. I have the resources (thanks to the gym at school) but I would appreciate some support.