I really don't know where my life is going?

i am almost 19 and i graduated from high school last june and right now im not doing much of anything.. i am moridly obese and i plan on getting gastric byp surgery soon... i dont have a job and i dont have a car or license or anything so i stay home and do nothing... i believe that i wont be able to drive or go to school or even get a job until i get the surgery and lose the weight... i am so ready to do this but whenever i mention it my mom just ignores me... lately ive been getting chest pain and im terrified theres something wrong with me because of my weight (although i do have anxiety and depression).. so im just hoping thats what its from.. but right now i just dont know what to do... i just wanna get the surgery so i can lose weight, go to school, start driving, get a job and support myself.. right now i feel stuck, what do i do?