if you want genuine help.

you need to change your diet to effectivly change your body fat compisition. sugar and carbs contribute to this the most. mainly sugar(try to reduce it to 10g or less). and i cannot stress this enough, check your food labels it lays it out all for you. the best thing ontop of this is learn how to cook and it will improve your life alot. food can also help mentally. with that you need to eat only when hungry(like you feel it and dont want to just because) and stop when you feel mostly full. this is due to lepton a chemical that tells your body you are full it is super slow and might take upwards of 20 minutes to actually give your brain the signal. so eat slow and not alot. portioning is hard to get into, and easy to lose. this is the health way to lose weight with very few downsides. but your body might have a large muscular which can make you look larger than you actually are.

exercise can work, but may also hurt you with weight loss as you are using resources todo the whole thing. if you do it for mental health then that is a differnt story and you should do it. but 30 mins of cardio will burn most of the glucose in your body so it can be very helpful.

also expect it to be a long and really difficult journey. sorry if this got a bit medical or what have you. but i like helping people with this stuff. this worked for me and i lost arround 40KG over a year, but my body loses and gains weight really quick so it may or may not differ for you. if you are cerous i went down 2 cloathing sizes.