Help: New to Self Assessment

Hi, I started working as a freelance journalist last year and I never earned more than £1000 in a tax year. Last night, I did the Self Assessment check on the Government website and it said I should register for it, which contradicted information I had previously heard and read about not needing to do it unless I earned £1000 or more in a tax year. I did register, but I'm still not sure whether this is something I needed to do. If I didn't, is there a way to cancel this? How would that work? I'm very new to this, but I'm trying to learn! I'll appreciate any advice. Thank you.

Hi,
If you earned under £1000 Self Employed, this would be covered by the Trading Allowance, and you would not need to file a return to declare this amount.
You can let us know that you no longer need to file here - Self Assessment tax returns .
If you would like us to review your eligibility and confirm that a return is not needed, contact us by webchat or phone via Self Assessment: general enquiries
Thank you.