Loosing weight need help !!NEED ADVICE

Lexi

Okay so I’m 15 I weight 132 I’ve gained weight I wanna get my flat stomach back but don’t know how bc I’m a bee picky eater and don’t really like healthy food but I have been working out lately to do something about it . This is a picture no I’m not fat but I am getting a little belly on me And I don’t like it I really don’t like my body right now someone help!!