I absolutely love Scottish and Irish traditional instrumental music when it's performed well by fantastic musicians. (Quick caveat emptor - I'm talking tunes pretty much totally here. Songs are guid, but not my buzz!) I am one of many wannabes who would love to emulate these folks, and in fact, I have tried to do so, and continue to try. I've even played in a few bands in my time and I know what it's like to feel the energy a whole room of happy dancing people, responding to music you are playing. I've never quite met my own expectations of how a piece of music should sound before I can justify performing it in public, but if I wait for that, I'll never play it anywhere outside of my bedroom.
So you just have to go for it, and if it's not quite right, persevere, and come back to it and try again. My own technique - play the tunes to yourself so you can sing or whistle them, in your head too, and all the while keep practising them. I'm happy to play sets that others have arranged until I get the tunes, then I can make my own arrangements.
I have been inspired by musicians such as these, and specifically these albums. The associate links will take you to the mighty Amazon where you can add to your collection.