No matter how prepared you think you are, psychologically you will never really be prepared for a large draw-down on a live account, compared to a demo account, where there’s very little attachment. So this sentence is super relevant.
Your best bet (pun intended) is to open a small live account after you’ve had a few months’ practice on demo. Only then will practice turn to experience.
There are brokers out there who will let you trade a little as 1 unit, such as OANDA. Not sure who else as I have not actually looked around for several years. But start small and work your way up.
I’m currently testing a new strategy on a live account with Oil, using 1 unit. It is a bit of a complicated, long-term hedging strategy that would be very difficult to back test properly, so this is a great alternative. Plus, it’s fun!
Good luck!