Before going live, you need to practice forex trading using a demo account for some time, until you feel confident with your trading strategy. So, watch this video to learn to open a demo account in the MetaTrader platform.
Normally, you visit the broker's website, fill in your details to register for a demo account. For some brokers, you don't have to do that. You can do it right from your MT4 platform.
So, first launch your MetaTrader software. Then find on the menu bar, File, Open an account items. You will be shown a series of windows where you fill in all the details, choose the leverage, etc. After this, you will arrive at the screen where you will find the login and server details. After completing these screens, you have successfully created your demo account funded with virtual money.