In this case, it is better for you not to start trading with real money.
You can deposit now.. but then practice on demo-account, before trading on real money.
And the deposit is calculated according to money management. For example, it is pretty popular rules, that you can`t involve more than max 2% of your capital in each deal. The minimum deal amount on Olymp Trade is 1 dollar, so it’s better to deposit as a minimum of 50-100 dollars. This is just to follow money management rules. To make decent earning each month and have a real income from trading, you will need even bigger capital…