Hi girl! It’s seems possible for you to lose 15 pounds to July, and if you already swim everyday that’s just great! But also think about the daily exercise, like take the stairs and walk as much as possible. I can give you some easy tips with the food, since it seems that’s what you need help with (?). Because of you age I don’t think it’s appropriate to start counting calories, because of all these eating disorders and so on (sorry, nothing personal <3). Some easy tricks to keep in mind during the days:
1) Make sure you drink enough water, spread it out during the day. Also drink green tea, you can have it several times everyday. I have coffee in the mornings, don’t know if you drink that? Some think coffee is like the worst thing ever but you’re allowed to have a personal opinion. Ofc, lol.
2) If you got a problem with snacking and are eating most of the times, set an alarm so you eat when you’re supposed to. About every 3-4 hour. Have breakfast, lunch, dinner and two smaller snacks. Don’t eat right before you’re going to bed, 2h before is okay. Don’t skip meals, that’ll totally ruin your metabolism.
3) Eat candy/sweets/chips/cakes/junk food/drink sodas/sweet drinks/and so on, only once per week. If you got a sweet tooth try to drink a glass of water at first and if that doesn’t help, eat some natural sugar that can be found in fruits. Bananas or grapes is fruits kinda high in sugars, so they’re great! Dried fruit generally have even more sugars.
4) Eat EVERYTHING in moderation! Your body needs carbs, fats and protein - don’t cut anything out, just eat the right amounts. I eat every kind of carbs (slow, fast, starch, sugars, fibers and so on) and fats (animal, vegetable, saturated, unsaturated and polyunsaturated).. Blah blah, you get it.