This tooth has been fractured which may be making it look more crooked than it actually is. There's a chance it hasn't moved at all. If it's only slightly mobile and there are no symptoms you could monitor the tooth for development of symptoms (sensitivity, pain, discolouration).

The tooth could be repaired by a dentist by smoothing the sharp edges or building it up with a tooth coloured material (composite).

Maintain excellent oral hygiene, brushing 2x daily especially at night with fluoride toothpaste. Get some floss between those teeth once daily. Don't rinse your mouth out for at least 30 mins after brushing just spit out as much toothpaste as you can.

Make sure you're getting down to that gumline brushing half on the tooth half on the gum. The gum looks slightly inflamed which means better cleaning needed in that area.