【One-Minute Explainer】Where does a transaction wait after it’s broadcast and before it’s added to the blockchain?
On Ethereum, you can replace a transaction that’s still in the mempool by resending it with the same nonce and a higher gas fee.
The fee for $BTC is generally quoted in satoshis per virtual byte (sat/vB); the higher the fee rate, the more likely miners are to select it.
If you’re unfamiliar with something, take it slow—start with a small amount and practice.