As I am from the US, I just learned something as I thought 'practises' was spelled wrong. "In the US, practice and practise are same. But in the UK both are different . In UK practice is used as noun and practise is used as verb. A doctor with a private practice practises privately. Here practice is used as a noun and practise is used as a verb. Practice makes the man perfect, so she practises the guitar every day. Here practice is used as noun and practises is used as verb." from https://www.difference.wiki/practice-vs-practise/
Linda, another way of looking at the matter is that according to dictionary.com
In British English, which is also called International English, practise is a verb and practice is a noun. American English tends to avoid practise altogether, using practice as both the noun and verb form.
Winning is something that happens on a particular occasion, success is a state of being. A person can win at 2:33 pm, but there is no moment of time where you are said to have achieved success. If she practices, she might win a race or match or debate, but she can't "succeed" a race or match or debate, she can just have a successful racing career after winning most of her races for twenty years.