How to get stock on balance sheet

Hi,

I have just done my first year on a very small (side hustle) Ltd company (for tax reasons) so don’t want to spend £700+ paying an accountant. I am trying to do my end of year accounts but I have one problem that my balance sheet shows -£3k in the business but I have £4.5k stock that needs to be added.

How do I get my end of year stock take on to the balance sheet? I aren’t interested in Quickbooks tracking my stock etc just want to input my inventory worth on to the balance sheet

Thanks