You must use your authority for more than simply building up your own self-image. Anyway, Scotland already has a King – John Balliol – even though he is in exile, it is not your place and you would be met with hostility.
Restore trade links with Europe. Recently, the good trading links which were established in the 11th and 12th centuries have been neglected. Scotland can become a booming economy once more.
Gather another army and attack Edward's realm. This would be a decisive move in propaganda. Your motto could be 'The Scots are unstoppable'.
Which card will you play?