Yes, Happy 18th Birthday - those were the days, nearly 40 years ago!
You should be enjoying life (which I think you are) if not there is something wrong.
Be VERY careful driving in the snow, I used to play about on a large car park to learn skid control. I had a Hillman Imp at 18, great car for snow ten times better than my 350. No power, narrow tyres and ALL the weight at the back.
Then I progressed to a Sunbeam Stiletto - more power, better equipped and RECLINING SEATS . As I said those were the days!