My tip as one of the may scots on this site would be to make sure you have plenty of sun cream with you, this is sunbathing weather to us who are cut from the north, my father was a block of granite and my mother an ice berg ect ect...
In all seriousness, just get out there and do it, yes there is lots of great tips posted here, especially the dont go to far, but in all reality i often find you learn most by just doing ii and finding what is really best for you, its amazing how we all adapt to new situations when we have to, that way you will expand you so called comfort zone. i remember when i first went out in -17 up at loch awe, it was a big deal to me then, now its just another day, you will find that unless you are really silly and have went out without the right kit, that you will be fine and most of all "JUST ENJOY IT AND DONT FIGHT IT", always work with nature and not against it, try to use the lie of the land in the correct way, as in dont camp on a ridge during high winds and dont camp in a sunken valley during cold weather.
Hope you have a great time
Merry xmas Colin