I'm 26 years old and have been trading for over 2 years now.
I have no formal education about trading. I just read many good blogs like Market Rewind and Brett Steenbarger's Traderfeed for ideas.
The more experience I get the more clear the market looks like and the easier it is to control my fear, greed and hope when trading.
I'm a technical trader.
I used to swing trade stocks a lot more often when there were plenty of technically appealing mean reversion set ups. The melt up of '09 has shut me out of stocks and made me adapt to other markets. Now I mostly scalp currency futures and sometimes even swing trading in very carefully selected situations.