If I won $10 million (tax free in Australia
) playing poker, I would take a break from everything for a few months and travel around the world. I'd take a break from study, work, poker, etc.
Then after a few months of holiday, I'd buy a nice house for maybe $3M, buy a Ferrari, give some money away to family/friends, buy a few investment properties and become an evil landlord (mwahahaha), deposit some cash into long-term bank deposits and put a relatively small amount of money (probably $50k at most) towards my future poker bankroll. I'd also finish my university degree and treat poker as just a recreational activity that I do on weekends for fun.