400m - Does anyone know of the best way to run 400m track?

[AndStilliRise]

Hi just wondering if there was anyone who knew how to run the 400 metres. Got training tomorrow, which will be 12*400m sprints and not keen on coming last.

My previous best is 75 which I know is ridiculously slow compared to the other people in the same group - 61.

Any help will be appreciated.

Thanks.