That's a lot of questions Nic!
I'm 25, with 5-6 years of relatively uneventful road driving under my belt. I've done over 6,000 miles in the 5spd, and 12-14,000 miles in the Auto, both have been driven in winter, on icy, very wet, and very snowy roads.
I've done track days, a drift day, a few sprints, also been on the kick plate at Rockingham (though not in my own car, yet). Never had any dramas on the road, though I have had a few spins on the track (have to find the limits of the car somehow ) and generally kept the car on the track when doing so. I will no doubt be doing more of the above in an effort to continue to improve my driving ability and reactions (and have fun).