Your launch.
One checklist.

Name the person you help and the problem they want solved.

Define what you deliver, what it costs and the next action.

Compare sole trader and limited company responsibilities before deciding.

Check naming rules, existing names and a suitable domain.

Follow the registration, identity and tax steps for your chosen structure.

Choose appropriate banking, keep records and plan for tax and running costs.

Check the licences, insurance, employment and data-protection requirements that apply to your work.

Give customers a clear way to enquire, book or buy. Decide who follows up.

Try the enquiry, booking, payment and confirmation steps. Track the first real customers.