Hi,

I am new to the bitcoin system, i have sent bitcoins 5 days ago and the order is still unconfirmed:

https://blockchain.info/tx/dfc41f646a3b1c2aa90bac2f89c80cac89edca869bd683f48105ec736cf3536b

I used Electrum and the default dynamic fee but i got a "Low fee" logo next to my transaction:
http://hpics.li/a6a0c1f

I would like to re-send it with more fee but i have several questions:
- I thought that dynamic fee would calculate the appropriate fee, then why do i have the message "low fee" ?
- I didn't enabled the "enable replace-by-fee" before sending the bitcoin, so if i understand well i had to enable it before sending the money right ? Now it's too late ?
- I wanted to have a look on viabtc accelerator but it seems to be out of order: https://www.viabtc.com/tools/txaccelerator/
- Right now i see there is more than 60k unconfirmed transactions (https://blockchain.info/fr/unconfirmed-transactions), what's the usual number ?
- When will the network forget my transaction, how long can it last ?
- Does someone have any tips for me ?

Thank you