Atlet, why do you want to lose on converting physical currency from one to another, if you have a power of Forex in your hands?

You could open an account in a currency you have already, and if you want to protect from risk (such as euro falling miserably), just open a corresponding position - no tp, no sl, just hedge your balance (sell euro in this case, position size = account size 1:1). The only thing make sure your broker offer you a good leverage so you don't have any significant portion of your account locked up in a permanent margin, but even with 50:1 it shouldn't be a big deal anyway.
PS if your broker is in EU extra advantage to have euro balance is cheap SEPA euro wire transfers.