@Krystal girl this is NOT a question for a mangabuddy comment section 😭 but eating healthier (just a bit a research), maybe going on a jog every day or when you can is good
and starving or "fasting" is NOT the best way to do it because after a long time of not eating and then u est again it just makes u gain weight in fact so yeah just being healthier and mindful abt what u do and stuff
I hope this helps although it's very vague 😭
also remember that if ur like under 16 ish like if u can't even drive urself to a gym u should NOT be worried abt ur wight or appearance, its normal to grow and change and gain weight during yk puberty and u shouldn't hate that or yourself. But yeah so good luck i hope u get to be happy with the best version of urself :)
just do some research and be healthy!!