"The measure of intelligence is the ability to change.
— Albert Einstein
You are allowed to change your mind due to learning new information. It doesn't speak anything negative but only something positive if you are able to use your experiences and research to map a better outlook. Don't let the narrow minded make you think that growth is hypocritical: it isn't! We were made to evolve and yes, to change! Growth means change and constant change due to new evidence and experiences is constant growth. Be proud of that heart and mind of yours that is growing and becoming better and better! You're wonderful for being able to grow. Have a great day!