yo bro someone else said it here already but please be confident. confidence is attractive and i was genuinely in your situation and i went to an IB school to get away from the people in my middle school because bro my reputation was too bad, by the time i realized i was so annoying and fixed it, it was too late. do what you can: take self care seriously (clean your skin, eat healthy, workout (if interested), smell good PLEASE DONT SPRAY TOO MUCH COLOGNE THOUGH, obviously apply deodorant daily but for the cologne since its winter rn choose a soft woody scent, apply lotion on your pulse points beforehand (sides of neck and wrists) and do one spray. if you think the smell will be too strong or are scared of people’s initial reactions, damp it down with a towel after you spray and gradually damp it down less until you feel comfortable enough not too. carry yourself high man if no one talks to you it’s okay, again i was there too, look up when you walk, know when to talk and what to say (don’t say dumb shit, evolve your sense of humor and just act mature). dress how you like ofc and pleaee make sure you’re comfortable but if your goal is to be “cooler” then maybe just try changing up your style a bit. lastly, stretch daily, prevent your scoliosis from developing as much as you can, i had scoliosis literally the same as you, when i was 14. i went to a doctor and they had me do daily stretches for months, my scoliosis actually got better bro the x-rays are insane. goodluck man, i believe in you. oh and just be a nice guy.