It would be a good idea to take the school of pipspology here at babypips eveb though you aren’t a stranger to trading.
If you haven’t trade forex before it’s a lot to learn there, and you’ll get it quick if you have been trading before
200 units of EUR/USD with OANDA is €200. You’re trading a market where the moves are measured in 10,000ths of a point, if not less. Multiply €200 times 1/10,000 and you get a very small number.