Usually those who admonish "Oh, I've been there and experienced it so I know what I'm talking about." are the very ones who
haven't done any such thing. Because if they had, they wouldn't be telling you such nonsense because they'd know it's not true.
I was raised in one of the fundamentalist Christian belief systems who are the most radical about anything and everything---certainly about believing Tarot is evil---and I've learned belatedly that none of what I was taught to fear about Tarot is true at all. In fact, what they believe and teach is spiritually abusive so if anything, they're more evil than Tarot is. Remember the passage that says that if anyone misleads one of Christ's children, it would be better if a millstone were put around his neck and he were thrown in the depths of the sea?
God is all-powerful, so if you truly believe that, then there's nothing at all we can fear in this life and certainly not a deck of cards that were originally invented based on Christian principles and which are only card stock and ink.
You've heard, I'm sure, "Oh but our God is a jealous God!" No He's not. You can't be unconditionally loving and jealous at the same time. They can't have it both ways.
Never forget that man wrote the Bible, God didn't. What you have in the Bible is man's interpretation of what God told him. And what we've got today, even in the King James version, is a far, far cry from what was given to the ancient prophets. Remember that children's game called "telephone" where you whisper something to the person next to you and it's repeated around the circle of people and then the person at the end tells what they were told aloud?
Also, I've read and studied the Bible since I could read it for myself at 7 years old, including studying foreign language dictionaries, the history of Jewish and Christian beliefs, etc. and I taught Sunday School most of my young life. I'm almost 64 years old now. Don't forget that there was this same God before all else, including the Jewish Torah and the Christian New Testament. What you have in the Bible, Torah and the churches and synagogues is a God that man has created in
his own image not a true picture of the real God who created man in
His own image. Organized religion has it all backwards, no matter which organized religion---and believe it or not, they're all organized by men (using the term generically to include women) including Wicca and Native American spiritual beliefs or any other you can name.
The God I've always loved and communicated with is the God who came before all else. As a child, that's who I turned to and throughout my life, He's the One who has been my confidant, my rock and my companion through all the hell as well as all the joy my life has contained. I was spiritually abused and misguided and taught a fearful God but always, the One I found as a child has been there.
Ask God to protect you and nothing can harm you. Don't listen to those who would make you fear and never, ever doubt that He (whoever He or She is to you) can protect you from all harm.