Alexandra Peacock

Hello, I'm looking to register as a sole trader but it asks for my estimated income. As yet, I have no job and no job prospects so I while I intend to find work, there's a chance I won't earn anything as a sole trader. The freelancer platform I want to sign up to requires me to be set up as a business in some format, before I can find work. Can you advise what the best course of action is for me? Also, are there any downsides I should be aware of in registering as a sole trader with my own name, rather than creating a different 'business' name? Thanks so much