I’m fat.

I’m a m18 270(last checked 9 months ago) 5’10. I’m tired of being this big and nobody is putting in the extra effort I need for support from my family. I need help with meal prepping and workouts I can do without a gym membership please give any advice or meal plans anything that’s not crazy expensive and I could hopefully make without spending much money. I don’t have a car, and I don’t have a job. My parents haven’t let me get a car until now and I’ve applied at 84 different places. Please help.