How to Trade Both Trend and Range Markets by Single Strategy?

Seven years ago when I was about to finish a long time study on how to understand the real meanings of economic concepts and in a shiny day when apparently everything did worked out well , I found myself a leading scientist of economics, someone who will be rich in couple of months. Seasons passed but nothing really happened with my saving account and I was fully desperate when I did get into disappointment hole.

One year later I met an old friend of school days, and he told me something that made me feel like a baby found his mother, a passion of life. Yes, he introduced me the global currency market.

Just like anyone else in the beginning of a long road, I asked my friend about how to trade? He has guide me how to take the courses and I did .one more year has passed and I was still thinking why every time I get into trade using trend based tools, the market turns to a boring range market, the situation of forcing me to close the trades loosing what I earned from last couple of trades and much worse when I use overbought/oversold strategies and the market turns to trend situation. That was my destiny while I've ruined two consecutive accounts like a peace of cake.

After those failures I decided to not open any trading accounts unless I know how to trade both moods of the market and to be an approved Emotionally Controlled Trader. Well, what happened next..? I have a real account now.

Before any specific suggestion, I must do first advice to not to do what I did unless you prove yourself just like last part of my story. Second advice is to avoid complex trading systems. Yes I mean customized complicated experts or trading systems, why? Because the only elements that can take you to gold mine is your understanding of the market behavior and sticking to what the simple indicators say and more importantly the passed license of Emotionally Controlled Trader. Don't go far while a simple Moving Average line next to a simple oscillator like RSI can give you enough signals to make money, but not easily as I say.