http://www.pokerstrategy.com/ is a great site if it's still up and running. Back when I played they gave very useful information for beginners about how to play, but also if you passed a quiz they'd give you $50 on your poker site of choice (limited to 2 or 3 of the big names iirc though) to play with. You had to play a certain amount of hands to actually be able to keep the money, but if you learn up about how to play properly using their guides and various other ones across the net, keep your head focused and patient, you'll quickly come to the end of the amount of total money you have to play and be well into profit.
...If you don't, you lose nothing, so I don't see any problems :D
A few hints:
1) Play way below your cash level. For cash games for example 25 buy-ins is a good level that many people suggest, I'd recommend as far as 50 buy-ins if you're a total beginner and want more room to adjust in, and ~15-20 buy-ins if you're an old time player with experience under your belt. (By this I mean, if you deposit $50, and go with 25 buyins, you can only play in $2 NL max)
2) The same hand in the same situation should be played one way when played correctly. If you know you played the hand right but you lost a big sum on it, it can be easy to go on tilt and play the hand wrong next time - the opposite is also true, if you played a hand wrong but won big, it can be tempting to play similar weak hands that way in future, when in fact you just got lucky and doing so will quickly end your stroke of luck and result in an overall loss.
3) Play the stats, don't gamble. There are statistically correct ways to play a hand in each situation, that will over time result in an overall profit in the long run provided you have correct bank roll management and stick to playing correctly. This means long term profit. It's very easy to give in to simply gambling or to make mistakes though and quickly become another gambler, and lose your entire bankroll.
4) If you go on tilt, take a break until you feel completely better. Do not play even one more hand until you've become very experienced and can immediately get yourself out of tilt again it's simply too risky, even slight tilt causes you to make mistakes and your management of yourself going on tilt can make or break your long term game.