As the homeowner and borrower, you can call your lender directly and ask to be provided with a status. I have handled many short sales, some taking longer than others, but recently I have seen quicker responses on my submissions. The biggest key is the ensure that the bank receives a complete package per their requirements, hardship letter, your financials, contract, listing agreement, etc. In cases where I have not been the listing agent representing the seller, I request a third party authorization signed by the seller, allowing me to call the bank directly to obtain status updates. If for example the package that was sent was incomplete, you will not get very far. I have had cases where my file has been sent to the modification department instead of the short sale department. Communicating with the bank on a regular basis is the key.
I wish you the best.