DD1 had very crooked teeth even up to the age of about 7 - I think she was at least 8 or 9 before they started to straighten out. We were convinced she would need braces...

As they get older the jaw grows & they all seem to settle into place - and that's exactly what happened, thank goodness, cause I wasn't looking forward to braces!
She now has quite nice teeth.

So I would give it a few years yet before you worry

HTH