you don't need a specialist
you do need to sit down and start reading the stickied threads -- start i n
nutrition, move on to on topic and then exercise.
once you start reading -and learning you will read me say more than once -you can eat as healthy as you want to - if you eat too many
calories you're going to gain weight... period...
have you and whomever feeds you - learn about portion sizes and what caloric content of portion sizes are... and set a reasoanble calorie range for yourself (the stickied threads will give you a ball park range to shoot for)