https://blockchain.info/tx/98048d83cf5f674bba3d17265190c609ac5874abeed3c7453a5507513425cf47
Indeed, you added 50 sat/byte. That's way to low.
You can try to prioritise the transaction using the viabtc txaccelerator: https://pool.viabtc.com/tools/txaccelerator/ .
A different problem with this tx is that it seems to contain dust:
https://www.blocktrail.com/BTC/tx/98048d83cf5f674bba3d17265190c609ac5874abeed3c7453a5507513425cf47
In the future, always enable opt-in RBF, it's an easy way to bump your fee (in essence, create a "clean" double spend of your unspent outputs in a new transaction that leaves ahigher fee).
Other options might be to do a CPFP or actually double spending the unspent outputs manually (altough such transactions usually don't propagate very well)