What should I do?

[basketballsuperstar]

I'm 15 years old, I weigh around 180 pounds and I'm 5'11. I would like to lose weight and gain some muscle on my arms, chest and get some abs. What do you suggest I should do? What should I be eating and what workouts should I be doing? I just got a free membership to the gym so I have access to all working out equipment for the summer.

Thanks