Going live to early
It’s a mistake to go live to early – would you drive a Ferrari/Porsche/McLaren/Bugatti (delete as appropriate) flat out around a track if you haven’t even passed your driving test? Practise on the demo in a realistic manner, master and understand the processes and what’s going on. Understand what you are looking at, be consistently profitable. Then and only then move over to a live account.
And then, when you do start to make a profit, go get that car!