Don’t bet what you can’t afford to lose - This is also known as the golden rule of sports betting and is something you absolutely do not want to do because you’ll hit a cold streak sooner or later and lose all your rent money. Use proper bankroll management - It is very important to use proper bankroll management because betting sports can be very streaky. Even professional bettors can lose 9 or 10 games in a row and if you’re betting too much per game you go bust. Think of your bankroll like your child and do whatever you have to protect it.