You can Invest and Trade different Assets, you can use the Expert Advisor and/or trade manually. You Decide. Here you can find out more: Platforms (Affiliate Link).
Find direct here (Affiliate Link) more about the different Account Possibilitys and remember a Demo Account is great to do Test Trading with Demo Money. Test it. Have Fun and also Success.
Here you can find the different Trading Possibilitys:
xm.com/forex-trading (no Affiliate)
xm.com/commodities (no Affiliate)
xm.com/energies (no Affiliate)
Am prefer Indices and Currency Pairs (FOREX MARKET).
My Advice: Currencys are the best, because is a 24 Hour Market.
You should Trade the biggest Market in the World and this
is the 24 Hours Open Currency (FOREX MARKET).