I am really confused about these two sentences:
1:- I have been doing this job for 10 years.
2:- It has been 10 years since I am doing this job.
Whether or not these sentences are same, if not then provide me with some help. And one thing more even if I say that I have been waiting for you since 6 hours is similar to this sentence that it has been six hours since I am waiting for you?
3:- Ten years has passed to this event.
Is this sentence correct or wrong?