Hi, 

I still  did not get any decision, its going to be 6 months this oct 13th. I have contacted USCIS and went there in person as well. They asked me for an offer letter as i told them i have lost couple job offers. I expedited the process but lastly i just received an email from USCIS mentioning "Your background check is still pending, If you dont hear within 180 days, please contact us back". I am not sure what to do. Is it safe to wait?  Please advise.

Do you think I should wait until the decision is made or join another masters to be safe and apply for h1b next year. 
What are the chances of H1b approval?

Please advise.

Thanks, Swathi