I made transaction 3 first, then 1 and 2 (not remember the order between 1 and 2)
As mentioned by ranochigo, you have made the transaction 1 before transaction 2.
If you want these transaction to be confirmed fast, you should bump the fee of transaction 2
Note that with bumping the fee of transaction 3, you invalidate transactions 1 and 2 and with bumping the fee of transaction 1, you invalidate transaction 2.
I'm now trying to increase the fees for transaction 3. The current fee for transaction 3 is 7 sat/b, but even I put in 27 sat/b, it still says:
the server returned an error when broadcasting the transaction. Consider trying to connect to a different server, or updating Electrum
insufficient fee, your transaction is trying to replace another one in the mempool but it does not meet the rules to do so. Try to increase the fee.