I finish my work. vs I am finished with my work.

[Phoo]

What is the difference b/w two below?

1. I finish my work.
2. I am finished with my work.

Thanks. :wink:

[Anna.ha]

Phoo, I have faced with this situation before and I do not know why. My context is

Well, I start working in the early morning and I'll be finished at lunch time.

[Phoo]

Hi, Anna.

You can also say that I'll finish it at lunch time, can't you?
"finish" in this case is transitive verb, so you need object(work or it).
But if you use "finished", you don't need object as it is an adjective.

These useges are different, yes I know but
I just don't see any differences in their meanings.