* Timing is crucial: The timeframe for changing schools varies by location and the specific school's policies. There are often deadlines, and the closer you are to the start of the school year, the less likely it is you'll be able to switch.
* Availability of places: The school you want to switch to must have available places in the year group you're entering. This is often the biggest hurdle.
* School's acceptance: The new school has the final say. They might not accept your application, even if they have spaces.
* Appeal process (if applicable): If your initial school choice was refused, you might have had the opportunity to appeal. This should be explored before switching, as appealing might still secure your preferred place.
In short, it's possible, but you should contact the school you wish to attend immediately and inquire about their admissions process and any available places. You should also inform your currently assigned school of your intentions.