Why am I so hungry

You might just be growing. I'm hungry aaaaallll the time. It's part of human nature to be hungry. But also maybe your body has been lacking food. Or maybe certain nutrients from food. It seems like you have a fit body, but maybe you need to eat healthier to give your body the nutrients it craves. Hope I helped answer your question <3

My only suggestion is if you are hungry, EAT! Restricting yourself when you are hungry is definitely unhealthy and not good for you, so if you want to eat something, then just go ahead and do that. :) People come in all shapes and sizes, so don't look at what others or the media shows you. It seems to me that you are very conscious about gaining weight. It's normal to gain weight, especially at your age. I was just as self-conscious as you are at 15, it takes time to grow out of the "skinny = good" preset that our society shouts at us, but don't you worry! You are beautiful no matter your size or weight or how often you work out. Don't stress yourself out over trivial things! You don't want to burn out so quickly. Love yourself, and EAT!

If you work out 5-6 times a week then of course you'll be hungry! It's your body's way of saying that you need to refill your fuel (aka food). I started working out 4-5 times a week myself about a month ago and I get so hungry, as long as you keep the eating healthy then eat :)

You can always eat filling foods that will sit with you a long time. High protein foods like eggs, meats or nuts will stick to your ribs like crazy. Additionally, you might want to look at your eating schedule; depending on when you eat, you metabolism will stop and start. For example, eating breakfast jumpstarts your metabolism, and from personal experience, makes me even hungrier come lunch time.