For lottery I prefer to use a set of numbers, not a single number. But yes, I prefer to use the number that I feel lucky to use. But not always, but as long as it keeps winning me. When I am losing repeatedly, I do not hesitate to choose alternative numbers.
Betting on the same number is a bit boring when you are losing repeatedly. It is better to have multiple number options and use them. Winning in betting requires luck, it can be any number.