As a professional trader i have three tips for beginners :
Tips number 1 for every Forex trader is to survive. Every trader has losing trades, but when you go broke you can put yourself in a position where you can no longer have winning trades. Therefore, before everything else you have to make sure you stay in the game.
Tips number 2 : always use a stop The stop loss is perhaps the most powerful weapon in your arsenal as a Forex trader, just as the most powerful weapon of the professional poker player is the fold (if that means anything to you). The stop loss allows you to predetermine your risk down to the pip, therefore ALWAYS use it!
tips number 3 : be realistic Unless you are amazingly lucky you can't expect to close 80% of your trades profitably or turn a $500 trading capital into a $10,000 trading capital in six months. With those kind of expectations you're simply setting yourself up for disappointment, frustration and failure. (unless you're very, very lucky).
Try to look at things realistically right from the start. Determine an attainable percentage of winning trades considering your strategy and experience. Ask yourself how much time you can spend on trading and learning. When you have a clear view of your trading tools and conditions, you will find it much easier to work towards a profitable trading strategy.