You can use a daytrading simulator to learn a lot about Forex trading, or to sharpen the skills that you have already. Although it is not difficult to learn Forex, it will involve your time and dedication.
Once you understand the 'big picture', you'll learn how the system works as a whole. Although from a mathematical view, everything is basically straight-forward. Learning and trading the Forex gets to be a bit daunting when you start getting into the market details.
The use of a daytrading simulator will enable you take make better use of the Forex literature that is available. Available are ebooks, books, online Forex courses, home courses, seminars, and website articles. Also, don't forget the free library.
It really depends on your learning style. If you enjoy the hands-on approach, surely a daytrading simulator would be your best option to begin with. That would enable you to learn with realistic data, not just theories.
Forex companies want to gain your business when/if you decide to trade with your own money. Many will offer you free access to their daytrading simulator software. This is a win win situation, as you can obtain a few good skills, while they have a potential trading customer.
Once you open a free demo account to get access to the simulator, you will receive an email with instructions. Your user name and password, with a link to the site with the simulator, will be given to you.
Some Forex companies will give you a free $50,000, $100,000 or more, demo account. While others will offer you two weeks, four weeks or more, access to their daytrading simulator.
Many times, even if you've exhausted your funds or time, and are still not ready to use your own money to trade the Forex, the company will extend free use of the simulator. They do want your trading business, 'ey?
That's another story though. You won't need to do much research on the Forex company that you get your daytrading simulator from, but you will definitely need to thoroughly investigate whom you trade Forex with.