If you make a transaction and it is not executed after a few seconds, leaving its status "pending", it is because the Binance Smart Chain network is saturated and it will take more time to complete. You can click on "speed up", to accelerate the transaction or "cancel", to cancel it, being necessary in both cases to pay the corresponding gas fee and wait for this new action to be completed; Or you can wait for it to complete itself naturally when the network's saturation decreases.
If you decide to cancel it and carry on with another transaction, it is recommended that you enter a gas fee and gas limit amount manually, higher than the default, so that the transaction will run faster.