How much should I deposit when I open a forex real account?

Open a real account with not too much (whatever that means for you personally - for some people, $1,000 is enough, for others $3,000 is too little) - in any case, it should be money you can afford to lose. This tip is very important and is pretty obvious, but we must mention it. The amount should not be so great that even at the time of wiring the deposit to your broker you start trembling for fear of losing it, nor should it be so small that it doesn't hurt you at all when the market goes a few pips against your open position. In a nutshell, in case you lose your deposit, your financial situation shouldn't change drastically as a result.