Calling LY is a waste of your time and simply contributes to high blood pressure. As with other carriers which use WorldTracer, the same information is available to LY as is available to you online. Also, as with other carriers, nobody is proactively looking for your bag. Unless it has been stolen or destroyed, it will simply show up somewhere and be unaccounted for. A scan of the bag tag or the ID tag you put on the bag will show it in WT and that will start the process of moving the bag to you in BOS. So long as you keep WT updated with a valid mobile number and delivery address, that is all you can and should do.
Not sure what was in the bag, but if it contained necessities, you may purchased those. Keep receipts and best to take a photo of the purchased item with its receipt. Under the Montreal Convention, LY is obligated to reimburse those up to a maximum of approximately US$1,650. After the passage of 20 days, the bag is deemed lost and you are entitled to reimbursement for the loss of the fair market value of the bag and contents up to $1,650 less any reimbursements.
Your travel insurance may provide better coverage and many simply provide a daily allowance.
For your own peace of mind, chasing LY won't speed up the return of the bag. It could be anywhere in the world LY flies or sitting in a corner behind check-in.