I am 12 nearly 13 now and I’m 4′8 and 115-120 pounds. I really want to lose wieght dont say im average and I don’t like being chubby. I’ve also done my research that 3500 calories are in each pound. So I really want to now if there is a better simple workout to lose the 3500 calories each day. I dont care how long I have the whole day. Also recommend workouts to get slimmer legs and tummy.

I eat a large healthy breakfast with a protein shake and/or a fruit(s).
I eat a smaller lunch.Like 50% of how much I would normally eat.
I eat a light dinner.
Also I eat a snack at some point in the day. Usually yogurt
I also don’t eat after 8-8:30

I work out after my breakfast for 2 – 3 hours:

For 1 hour I walk up and down the stairs I would lose 434 calories
OR
For 1 hour I run up and down the stairs I lose 816 calories.

I jumprope at a moderate speed for an hour so I would lose 545 calories
OR
at quick pace jump roping I lose 653 per hour.

I drink lots of water while exercising.

Dont recommend pills or acai berry. Also I can’t afford to go to gyms.
Suggest ways of workouts to lose alot of calories. I dont care how long