Good for you! You WILL succeed in life, in just a few short years. You have your priorities set correct.
Me at 19? 1968. Surfing the CaliforniaProSurfingTour, no real structure, applied for CalWesternUniversity knowing I could get my money back if I dropped out, and still kept my Hall and Meal passes...
Bought a MontesaScorpion250 for future motocross, it's an off road dual purpose bike.
Was one of the 3 of the original big wave OceanBeachSF surfing crew, of the South end, Sloat. Shaping boards to play property tax and food.
I guess I was guilty of surfing 6+ days a week, oftentimes twice a day, and driving to the surf contests from mid Baja up to SanFrancisco.