I am very cheap with fees. I've been waiting since Feb 16 for a BTC transaction that I sent from 1 wallet to another. The fee was 8 sats/byte. I'll report back when it confirms because this is already a record long (13 days)
Your transaction fee with 8 sats/byte is quite low, presumably that during the days you'd make a transaction is a peak day of the mempool network.
However, it barely happens that the mempool network will drop transactions, it's commonly be confirmed but it will take approximately 2 weeks for you to wait. Just keep trying to accelerate your transaction using Bitcoin accelerators, it might help if you get lucky and I suggest using ViaBTC as I have heard, they owned mining pools.