Lowering payment on account

I'm filling out my self assessment for 22/23. My income for 23/24 is going to be dramatically lower than expected so I'd like to lower or remove the payment on account. But where on the form do I do that? I can't find it anywhere. Thanks

Hi,

It is at the end of the return, after adjustments.

Thank you. 

Great thank you. It would be really helpful if there was a version of the full form somewhere online which was searchable and you could just look through so you can get everything prepared before filling it out.