If you want to have the most fun when you are betting on sports, then you need to give yourself the best possible chance of winning. Obviously it will always be a gamble, as you will never know whether you will win. However, you can improve your odds of winning.
Sometime sit can get better with practice, but with betting it is more about doing your research. You need to very carefully take a look at all the competitors and work out which has the best possible chance of winning. If it is a sport that you already know a lot about, then you have a much better chance of making a good decision.
You may find that if you do bet on the team that has the best chance of winning, that the return you will get will be very small. You may make a conscious decision to bet on the underdog in the hope that they might just win and they you will get a lot of winnings. Obviously this is very risky and you need to make sure that the money you bet, you can afford to lose.
In fact it makes betting much more fun if you do make sure that every bit of money that you bet, you can afford to lose. Losing can be miserable and if you are losing money that you really need for other things, then it can be even worse. So make sure that you are sensible and that you only spend money that you do not need and then even if you do lose, things will not seem that bad.
So make sure that you do your research before you place your bet and know exactly what you are getting in to and make sure that the amount of money you bet will not effect you badly if you lose.