Besides using the idea of BUY and SELL which is very common yet one of the simplest fundamentals in this field there is an experience you have to obtain. Experience if the most important thing you need to obtain in order to be an efficient trader. Since you have enough amount of money just like what you have said try to use few of it to practise and gain experience. If you encounter any loss upon your trade don't be down but rather absorb it all, this can be used as a guide or as a learning to improve your trade. One thing, all the info you can find in this forum or everywhere can be used as a guide and tips but don't rely on it too much, have your own strategies and work on your analysis.
Since the common thing in doing a trade is buying and selling of goods and services knowing the basics is a must. Trading while you are a newbie is a hard thing to do because of lot of things you should know before trading. All of us knew that trading requires specific amount in order to get started. No first timer done it perfect so if ever you failed or loss your money take it as challenged and a lesson. Experience is the best teacher because it helps you minimize your mistakes and maximize your ideas. Also you can seek learning and strategies to those who excel in trading until you come up with your own strategy. Analyse your strength and weaknesses so that you can focus on what your great to. Have patience because no one earn in just a blink of an eye. Dream big with actions.