NinjaTrader gives two 14 day trials of free demo data using the same email address within a 90 day period. Just go to this NinjaTrader link.
Then the best, easiest, up front way is to open an account with NinjaTrader Brokerage who provides the Continuum (CQG) data.
It requires a 1k deposit to open an account. You can withdraw $500 of the 1k, if so desired, the next day… last I heard. The data bundle, which includes numerous markets, is $21 a month.
If you trade Nadex, take $250 of the withdrawal and open an account at Nadex to trade spreads and binaries with capped risk. Then, back at NinjaTrader, fund a forex account for as little as $50 or more. There, futures and forex can be traded on a single brokerage license.
Place 1 micro forex trade a month to avoid an inactivity fee of $15. The cost of a micro trade is minimal and who knows you might make money!
So now you have $500 in an NT brokerage, $250 at Nadex, and $50 in the forex account. That leaves $200 for your wallet. And, now you won’t “feel” the monthly data fee because the $500 is in the brokerage account to cover it.
You will also have top quality data. The Continuum/CQG data feed provided with a brokerage account is true, unfiltered tick data. The power resources will always support the true live feed, as it is real live traders with real money. Demo is good, but it can be taken down for whatever reason or knocked off connection. For any kind of live trading, having accurate uninterrupted data is always the best.
Steps
- Go here for free demo data: http://ninjatrader.com/FreeLiveData?gclid=Cj0KEQiA1qajBRC_6MO49cqDxbYBEiQAiCl5_Cq4w5lAqW5UccmzifnCXPydMdGNpHAIiVbf_4d8tQYaAlIB8P8HAQ
- Go here to open a brokerage account: http://ninjatrader.com/OpenAccount#!OpenAccount_Futures
- Choose Dorman or Phillips, little difference but research which you like better
- Once approved, fund with 1k
- Withdraw $500 (if desired)
- Deposit $250 into Nadex (if desired)
- Take $50 and Open a Forex account, to open go to http://ninjatrader.com/OpenAccount#!OpenAccount_Futures
- $200 left for the wallet
- Place one trade through Ninja a month, avoid inactivity fee (can be micro forex trade)
If you have questions about how to open and fund an account call NinjaTrader, they have excellent customer support! 
For more detailed information read Day Trading? Where You Can Find Live CQG Data Free Or At Bundle Price
Other helpful links: NinjaTrader, Nadex and Apex - What’s the difference between them all?