Bank Rec question!

SUGGESTED

So sat stressed out of my mind doing the recs month by month for EOY. Came to August and have managed to somehow set the date for Aug 2020 without realising. So now my bank rec screen looks like this

Statement Date Reconciled By Reference Starting Balance Closing Balance
30/04/2018 ********** 30/04/2018 ******* *******
31/05/2018 ********** 31/05/2018 ******* *******
30/06/2018 ********** 30/06/2018 ******* *******
30/07/2018 ********** 30/07/2018 ******* *******
31/08/2018 ********** 31/08/2018 ******* *******
30/09/2018 ********** 30/09/2018 ******* *******
31/10/2018 ********** 31/10/2018 ******* *******
30/11/2018 ********** 30/11/2018 ******* *******
31/12/2018 ********** 31/12/2018 ******* *******
31/01/2019 ********** 31/01/2019 ******* *******
28/02/2019 ********** 28/02/2019 ******* *******
29/03/2019 ********** 29/03/2019 ******* *******
30/04/2019 ********** 30/04/2019 ******* *******
30/05/2019 ********** 30/05/2019 ******* *******
28/06/2019 ********** 28/06/2019 ******* *******
31/07/2019 ********** 31/07/2019 ******* *******
30/09/2019 ********** 30/09/2019 ******* *******
31/08/2020 ********** 31/08/2020 ******* *******

They don't teach you how to deal with this on AAT sage level 2! All i'm getting is that I can't edit it once it's been reconciled. Can anyone offer any advice?

Thanks,

Ffion