I am not condemning you from ever breeding Bettas... I am simply trying to encourage you, through logical reasoning, that you are not ready yet and need to do more research.
Of course, you have free agency to choose what you want to do. So if you so choose to breed anyway, despite our best efforts to lead you in smarter paths, don't come running to us in tears that all of your Bettas died, or you have too many to care for or you don't know what to do.
Be wise in your decision.