I am 13 years old. I weigh 155 pounds which i think is 60-75 kg but I’m not positive. I have noticeable hips. I Wear 32inch waist Levi jeans which are loose fit (the ones with the tannish tag that have the red picture and label on them). They still feel kind of tight. I’m 5’5" tall. I have a fat stomach but not extremely fat. When I sit in this computer chair for a while there are red marks on my stomach from fat rubbing together. I really rather not purchase any workout items because I heard they’re all bs ripoffs but if there are any that are worth buying than I might buy it. Also I have very fat thighs(quadrocepts) and calfs. I could use any help on how to lose fat on those areas too. My primary goal is to lose fat. My Secondary goal is to noticeably gain muscle. Thanks for any help.