Ending self employment, get PIP and Carers. Will I be penalised?

Hi I need some help, even directing to the right place.

I am self employed and receive PIP (I work in a shop with my mam who is also my carer - gets CA for me).

Also have two disabled children 17 and 13 receiving PIP and DLA (I claim CA for eldest).

I moved onto UC from Tax Credits summer 2024 and receive transitional payment.

Mam has said she wants to retire and close the shop/business.

Will I lose my transitional payment if I don't have a job anymore? I dont have minimum income floor because I get carers allowance.

They did a LCWRA for me and said I can work (despite enhanced PIP mobility and daily living but they said that didn't count for anything).

Question - will I be penalised if I can no longer be self employed if my mam retired?

I hope I've covered my circumstances. I don't want to ring uc and ask in case they change things.