I can sing both in alto and soprano, so which should I sing? How do I find which one fits my personality best?

I'm starting to get really into singing, and I can sing in both ranges, and I like both, but I know that ultimately I will have to choose one range, otherwise I will always be switching back and forth and will never have a solid musical identity. I'm looking more for a way to find which fits my personality. For that matter, how do I find my personality period? Anybody who has any advice is welcome to answer, because I really need help! Thanks!