How do the fees work in electrum wallet? With dynamic fees on, when the slider is set to minimum it's saying it will be 0.00172BTC which is like £8/$11. Is this how much you have to pay for every transaction!? Everywhere I've looked people say to check dynamic fees or it may not go through but this seems ridiculously high. This is my first transaction so I hope I'm being an idiot and doing something wrong.
Click the "preview" button and check what the transaction
data size is... You'll also be able to see how many inputs are being used for your transaction.
Transaction fees in Bitcoin are based on the data size of the transaction (measured in bytes)... Generally, the more inputs, the larger the transaction size becomes. If you've received a lot of smaller amounts, you end up needing to use more of them to send larger amounts out. More inputs = more data = more fees.
You've mentioned that it wants to use a total fee of 0.00172 BTC, but what's the fee
rate?? Hover the mouse over the slider and see what it says the "BTC/kB" rate is...