so when I touch my vulva it feels good that I do it again and again

Okay so what you're describing is totally normal and it's called self-pleasure. Lots of people, including girls and women, experience it as they grow up and learn about their bodies. It's just one way your body can feel good.

Your vulva and clitoris (which is a super sensitive part of your vulva) are full of nerve endings, and touching them can feel really nice. It's just your body responding to touch, and it's a natural part of growing up and understanding what your body feels like. So many people do it!

It's a personal thing, and it's up to you to explore your body and learn what feels good and what doesn't. If you ever have more questions about how your body works as you're growing up, you can always ask a trusted grown-up or check out the Soso blog for more info.