I feel really ashamed for using a tampon? what should I do?

I have tampons, my mom knows I have them.. she's the one who bought them. I wanted them, when I put it in though.. I felt really guilty and I was really scared. It came with instructions and I don't feel it so I guess I did it right. How can I stop this guilty feeling? Did you feel this when you first used one?
I feel really ashamed for using a tampon? what should I do?
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