I believe that the best option for a beginner is a demo account.
For a start, maybe a few days to a week that would be awesome.
But after that, what's next?
The actual trading it goes and see if the learnings you've gained through demo account is going to result into good trades and into your fruition with this career.
Yes, you are right, well I always advise every newbie that I can tell them to be able to trade in an account with fictitious money, the idea is that they can test the strategies, but above all it is to learn to use the trading tools offered by the Exchange , so that at the time of real trading you do not suffer losses. Of course I would say that almost 100% do not follow this recommendation, they only do it until they lose and they worry about not making any more mistakes.
Because all of them had followed their heart, not those things that have been taught to them. If they are just able to control their emotions and are just about to follow that advice and tutorials, that can't be difficult and could avoid losses but unfortunately, this is never happening. Well, it probably will teach them that trading is not easy and this is also a way to test their patience and find their mistakes a big help to be more careful the next time.