First of all, self harm does nothing but make things worse, second of all, don't be too worried about your belly, if you really wanna lose weight then eat more, make healthier options (if you eat fast food try not to have to many calories without much benefit, such as 1000 calories for only 10 grams of protein and no real nutrients). Do a lot of cardio and work out, you will feel better about yourself, believe me I would know. I will say this again, don't be too worried about how you look unless it is an actual detriment to your health, live life and be happy, happiness leads to a longer life, and a longer life leads to more experiences.

what should i do then deliver it more softly?
everyone has their own way of helping

Maybe don't say crap like " don't be a victim of your own genetics" You can clearly see the girl is not in a good mindset at the moment. You have a right message but you're delivering it inappropriately

. IGNORE that jerk, lovey.😒 It's okay to post stuff like this) I can totally relate to your struggles on body image, you're not alone. I want to tell you that you're beautiful in every way, and that you do not need to compare yourself to your sisters or anyone. I know you might not believe it now, but it's true. You don't need to have a certain body to be pretty. You're pretty.🩷 And yes, please do eat, love. It's crucial for your development. Starving yourself does not have benefits, so try to eat 3 meals a day if you can. I know harming yourself is a way of getting someone to notice you, but please don't burn your delicate skin, it can leave marks that take time to go away. I suggest you speak to someone you really trust, it doesn't always need to be an adult. It can be your friends or even your sisters😁. Everything is going to be okay. Take care of yourself🩷

Girl
Self harm is not the way
And don't be a victim to your own genetics
the genetics gotta be a victim to you
and being chubby doesn't mean ur ugly either
the minds a powerful place when it comes to thinking use that as advantage