Bucko

Hi, in tax year 2022/23 I sold some shares in an OEIC and made a loss of £1000, I did not make any gains and did not complete the CGT section of my self assessment. Should I have declared the loss? in tax year 2023/34 I sold more shares in the same OEIC and made a gain of £9000 which I am declaring in the online self-assessment. Should I be able to offset the previous undeclared loss? If so, do I simply declare the amount of the loss in the 'Losses and Adjustments' field 'Losses set against 2023-24 capital gains'? Should I complete a 'Capital gains computation worksheet' or are these only for gains/losses in 2023/24? Thank you.