Lot of replies here will be buy low sell high LOL,
I will give my honest advice for you. If you want to start trading, start with a small amount of money, experience is the number one teacher in trading, don't listen to anyone! develop your own skill and strategy in trading considering that every individual have different approach to it. As time passes by, make your capital bigger as long as you are ready for it. Make sure you are satisfied with your skill and strategy so that the risk for every trade that you will make will be lessen.
Trading is war of strategy and mind, don't be greedy, set your goals straight! as long as you are following what you want trading will be good to you. If you lose don't stop there's a time in every trader or in majority of the trader that they became broke because of trading. If that scenario happen to you, don't stop! and remember your goals. Trade everyday and make it your passion. Trading is a good source of income as long you know what you are doing.