-To start trading you must to find a broker. This is easy. Here are the most trusted brokers:
IG
FxPro
TD Ameritrade
CMC Markets
Etoro
And after you got broker you need just to install a forex platform.
The most used are Metatrader 4 and Metatrader 5.
After this you need to find a strategy because 90% of peoples lost money in forex and this is too importand to know the risk.
You need to learn forex step by step, and i recommand to use Babypips