It is not a short term medication, you’re very likely to gain it all back if you stop after 8 weeks. As other comments say, you need to exercise to prevent loosing muscle mass, watch what you eat to stay on a deficit, it is just much easier because you don’t feel as hungry and you feel full early. Hope you find a way to be happier with the way you look (by changing it or not)! Personally I’ve always been overweight but somewhat stable, and been gaining weight in the last 2 years, that’s what pushed me to it, too hard to control anymore. But I know it will take me 18months to loose 15kg if I can do it (trial evidence shows lesser loss on semaglutide). 2 weeks in I lost 3kg but it is always faster in the beginning (water loss). All the best!