Seasoned Runner now?

I've run in the snow with yak tracks now. I ran a race with salt on the roads (if you are from a snowey area you know what I mean, not household salt!). I ran a race where they ran out of water because it was so warm. I've ran even when I really had to go to the bathroom. I've run in the rain. I did start out running one day with M when it was 20 degree out. We got up to the corner, the wind hit me, and I just stopped. I said I couldn't do it. M thought I was joking - I was not. We turned back and went running later that day. But now I am seasoned because I took a fall during the our Mountain Goat training Saturday. Does this mean I am ready for a 1/2 marathon - NOT!