If you are a masters student, It takes mimum 1-yr to get H1B and then minimum 1-yr to get GC if you file under EB1 or EB2 otherwise 4-5 years.

Worst case, you may never be able to get through H1B lottery and may this never happen to you.

If you are a Bachelor's student, then this will be a looooooooooooong way. Good luck