Is there a chance you’ll come to like it again/she’ll grow into it?
I love my dd1’s name, but it was just too ‘big’ for her as a baby. We used a nickname (not a shortening or derivative in any way, a completely different name!) for ages, so much so that she had no idea what her name was until she was about 4 
When she was 2ish, I had a serious discussion with her dad about changing her name, as I really couldn’t ever see me using it - it just didn’t ‘fit’ at all.
I didn’t, and instead made an effort to use her name more (which at least stopped confusing everyone at TumbleTots, as she had always had one name on her name sticker, and been called another name 
), and she did gradually grow into it (helped by the fact that dd2 had started talking, couldn’t pronounce dd1’s name, and so a shortening became her everyday name)
Dd1 is 15 now, and uses her full name. I’m really glad I didn’t change it officially, it suits her and I can’t imagine her being called anything else now - not even the nickname we used for years!
If you really can’t see yourself ever liking it again, then change it. Life is too short to dislike something so important.