How long will it take for my teeth gap to close with braces? (Photo)

I've had braces for two years now. I have a small triangle like gap between my two front teeth, lost my last muller bottom right two months ago, and I have a gap between my lateral incisor and canine. I have not had springs, or rubber bands, etc. will i need rubber bands in the future, or do you have an estimate of how much longer I might need my braces for?

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