Excuse me, a legal expert who understands copyright. I have researched a high-value method for lottery tickets. How do I apply for an invention patent?

Your method will not be patented, and it does not fall under the circumstances under which a patent should be granted under the Patent Law. So if you want to apply for a patent, it will not be accepted. If your method is feasible, just buy lottery tickets yourself, so that fewer people know the secret and the more money you make, just like the formula of Coca-Cola is not known.