Hi, if you are only sending your transaction to another wallet address and you must try to replace your transaction with the more fees. I have the same problem with you but basically if you are making another new transaction and you will be only lost your gas amount in your old transaction.
The gas station calculator is not 100% accurate. It may better to do your own research through talking about that with another person. But i'm not suggest you to replace your transaction if you are sending it to the exchange site.