How to fix my big front teeth (plus the other obvious issues)? (Photo)

My teeth aren't fantastic, but due to insurance repeatedly denying my requests for braces as a child, I'm stuck with these until I can't afford to fix them. Obviously the crookedness is an issue, but is there a way to fix my very large front teeth? Not only do they affect the way I talk, but I'm sick of being compared to a rabbit. The photo is awkward also, due to my small mouth and the not-so-white shade. (I'm working on that.) Thank you!

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