Applications are closed for Cohort 2019 but will re-open in September 2019.
In the meantime it is a good idea to get some school experience in a comprehensive secondary school. This is absolutely vital to work out if this radical step is right for you. Please follow this link for some tips on how to go about securing some.
The Department for Education runs a School Experience Programme that you may find helpful in finding a school experience. You can find out more and register for this on their website here.
Alternatively you may already have contacts or access to schools that could help you find some school experience.