Not everything will end well when choosing something new or new choice that has never been done before, some people experience bad results in trying every new thing and this is why it is highly recommended to choose what has given lot of experience rather than focusing on others.
I don't really recommend beginners to try some new things that are risky with quite lot of money, to gain experience is good but it must be with their ability if it fails, such as teaser bets that can increase the chance of winning but it is with lower odds and if it fails then it is not worth it.
Some people may try to get better results in the available odds income such as in more than 7 matches but they are not aware of the risks, this is why new things will sometimes have bad impact on beginner.