How can I fix my crossbite? (Photo)

I have a Crossbite due to early loss of many baby teeth when I was 9 yrs old, my final teeth erupted at 12 yrs old, the spaces were not kept, so now I have a cross bite. What appliances could help me? I don’t think my Crossbite is skeletal, that’s why I told the story of how it started, I had good oral posture and an excellent bite prior to losing so many baby teeth.