For begginer I suggest first open a cent or a micro account then invest 100 or 200 dollars. I always believed that more balance kept me safe. Choose micro and trading lots at low risk by eurusd or gbpusd pairs. After trading well then you decide what you should do trading or go backwards. Beginners in forex should not invest large capital in advance of all their advice to start with the amount they want to lose. Most first time traders in the market live lose their capital on the first day or the first week of their live trading. If you can deposit $ 5 or $ 10 for a cent account, then it is much better. After doing the exercises on a demo account, you can invest 10-20 $ in a matter of cent to keep learning with real trading. Once you start generating a consistent profit in cent accounts, then you can start trading in a standard account. You can invest so you can lose. However, I advise you not to invest more than $ 100 on startup. Always stay with eurusd to stay in trading