There are so many people out there who decide that want to do interior design.
They get hooked on Pinterest or Houzz, redecorate a room or two get a few compliments from friends, and bang they become an interior designer!
What people don’t realise is the work that goes into this profession. 85% of an interior designers work is the coordination and admin, and 15% is the design. It is therefore imperative that someone knows what they are doing as within that percentage there is a lot that can go wrong.
The British Institute of Interior Design have a number of registered designers who have met their rigorous requirements https://biid.org.uk/find-a-designer/find-a-biid-accredited-interior-designer
Find someone that has the experience, that you feel a bond with and that you can trust will know what they are doing!