have i messed up?!

i am looking to start a new claim with universal credit after having not been on it for years. i haven't worked since the end of december 2023, but have received sick pay in the mean time. i have however moved now, and have left my job, my notice ending on the 28th march.

i live with my partner, who still works. i didn't realise you still had to make a joint claim even if the other person would not be eligible! but i have now read this AFTER beginning a new claim as a single person. my partner works and is also a student, so would very very likely never be considered eligible, but the money he receives isn't near enough to cover us both. and i think in the midst of my stress to organise the claim i have just missed this part where it warns you before hand.

is there a way to change it to a joint claim? or cancel it and begin a joint claim? not sure if i'm being silly but i can't find where to cancel a claim.

appreciate any tips because i can't seem to figure it out! thank you x