I sent 2.2 bitcoins using the old version of multibit application (0.5.18)
The commission is not calculated correctly. Therefore, the transaction can be confirmed forever.
What can I do to cancel a transaction?
I read about a "double-spend" and other solutions to the problem, but what should I do step by step (because I used a multibit).
Try to export keys and install bitcoin core?
Is the transaction self-canceled if I do nothing?