I'm new to this so... Any advice from boys how I should keep a healthy life?

Just be yourself, work hard but don't forget to have a life. Surround yourself with good people. Hit the gym, eat right but give yourself a cheat day. That's all I got

Eat less, eat smart (don't eliminate your favorite foods, just really limit them), be active, don't expect this to be a 2-month quick fix, don't expect results in the first week, you'll have highs and lows, if you fall...get back up and re-start stronger. Surround yourself with quality friends...not quantity...this is not twitter nor Facebook, your popularity is not measure by the number of friends but by your drive, determination, persistence and good spirits you maintain.