Every single thing one does in life is a gamble that carries a probability of success.

Getting a degree. Investing in a business. Investing in a relationship. Having kids. Smoking. Booking a flight cheaper but with no possibility of cancellation. Moving town. Not moving town.

I could go on forever.

Everything is a gamble. Some forms of gambling are more socially acceptable than others.

The difference, in everyhthing, is emotional control and knowing how much you stand to lose if it goes wrong.