What software should a complete beginner use for animation production?

Hello everyone, this is my first post in the community. To promote my product, I recently started trying to create promotional animations for it. However, I have no experience in animation production. I spent a lot of time trying to make animations using PowerPoint, but I was not satisfied with the final result. I sincerely want to ask everyone: If I were to start learning animation production from scratch, which software should I try? Or, I would love to know which animation software you find interesting. I'm really looking forward to your responses.☺