Technically you are not a US IMG aspirant. US IMG refer to US citizens who have graduated from a foreign medical school.
You will be a non-US IMG (Also called FMG–foreign medical graduate) because you don’t have US citizenship.
Having US citizenship or PR status makes a BIG difference in how your medical residency application will be viewed by residency program directors.
But @happy1 is right. First you need to figure out what you/your family can afford to pay for your undergraduate education/pre-medical coursework and get that done.
Only once you’ve earned your degree can you start to think about medical school.