Insecure

Hello po. I'm new here. I've been feeling insecure since lumaki ako. Yung mga dati kong isinusuot (like shorts) ay hindi ko na maisuot with confidence unlike before. I'm 4'10 with a weight of 55 kgs. Gusto ko lang talagang lumiit yung tiyan ko ulit. Any advice po or may mairerecommend po ba kayong exercise or budget-friendly diet? Thank you in advance!