From tourist to employed?

I went to graduate school in the US, but have now been back in my country for a couple of years.
I was planning to go back to the US (I have a tourist visa) and try to find an employer that would sponsor me--I know it would be hard.

Suppose I was successful in obtaining an employer willing to sposor me. Would I then go back to my country and try to get the H-1B?
How long might this take?

Any advice?

Thanks

Quite a while.
All H1-B for next year are gone...