I want to open a new store. Should I believe in Buddhism or myself?

The key depends on whether you believe in Buddhism or lottery. If you believe in Buddhism and do good deeds according to the teachings of Buddhism, then you can do it boldly. Buddha will bless you and make you successful. If you believe in the lottery, don't do it. It should be emphasized that Buddhism is not allowed to draw lots to calculate divination, so the temple you go to is not a real Buddhist temple and you think you can succeed, then believe in yourself.