I answer you

1, you have to hire a lawer because of LC procedure. You can not do by yourself.
2, to apply for LC. fill a lot of paper work with lawer to apply LC.in this procedure, you need to pass the salary requirement, then do advertising for 6 months and then apply for LC.
3, after LC, to apply for I-140.
4, when I-140 is done, to apply for I-485. in this procedure, you can apply for AP and Labor certification. youy also will do finger print.
then you can you get your green card.
That is all.