I recommend trading microlots until you are comfortable trading larger margin.
i.e trading a single mini lot you are subject to 1 USD a pip on i.e. EUROUSD pair. Considering to succesfully trade forex, you are not looking at scalping tactics to start off with as a new trader, you are looking at more trend trading, your SL's are going to be alot larger. i.e 100pip SL.
Now if trading mini's this can be $100 USD loss on a single trade and remember only 5% of traders are successful.
My per my recommendation, micro lots will be as small as 1c USD, so a 100 pip SL will be only 1 USD.
Once confident, then increase your lot sizes, but make sure you are doing well with your strategy prior to proceeding!
