I have checked your txid and it seems you paid a low fee (0.0001 BTC) at the time of transactions, even though it will be confirmed faster at the moment. Your transaction already
removed/expired, you can see it here:
https://www.blocktrail.com/BTC/tx/f8b6d0056be4e886705dd3e6dc2308073f7049d8a6ef826bc93f45efa0613f8eHowever, I don't know what will happen with your bitcoin, I feel the same, my transaction stuck for weeks now. I thought it will be cancelled and my balance on wallet will be back, but it's not.
Tramsactions
don't expire; most nodes only forget/remove them from the mempool including the wallet that you're using but that doesn't mean that these transactions aren't existing somewhere on other nodes. Accelerators would still work, or better yet you can replicate the transaction by applying proper
fee bumping.
Next time, pay the ample amount of fee in order for your tx to not get stuck in the limbo and give you headaches. In the end, you'd still pay these fees so better do it earlier.